def make_custom_region_dict(seed_dict):
    """
    constructs a dictionary of location - item pairs for useful regions which
    are not already defined in the logs
    """
    s = seed_dict
    custom_regions = {'Kakariko': {'Kakariko Tavern': s['Light World'][
        'Kakariko Tavern'], 'Chicken House': s['Light World'][
        'Chicken House'], 'Kakariko Well - Top': s['Light World'][
        'Kakariko Well - Top'], 'Kakariko Well - Left': s['Light World'][
        'Kakariko Well - Left'], 'Kakariko Well - Middle': s['Light World']
        ['Kakariko Well - Middle'], 'Kakariko Well - Right': s[
        'Light World']['Kakariko Well - Right'], 'Kakariko Well - Bottom':
        s['Light World']['Kakariko Well - Bottom'], "Blind's Hideout - Top":
        s['Light World']["Blind's Hideout - Top"], "Blind's Hideout - Left":
        s['Light World']["Blind's Hideout - Left"],
        "Blind's Hideout - Right": s['Light World'][
        "Blind's Hideout - Right"], "Blind's Hideout - Far Left": s[
        'Light World']["Blind's Hideout - Far Left"],
        "Blind's Hideout - Far Right": s['Light World'][
        "Blind's Hideout - Far Right"], 'Bottle Merchant': s['Light World']
        ['Bottle Merchant']}, 'South Shore': {'Floodgate Chest': s[
        'Light World']['Floodgate Chest'], 'Sunken Treasure': s[
        'Light World']['Sunken Treasure'], 'Mini Moldorm Cave - Far Left':
        s['Light World']['Mini Moldorm Cave - Far Left'],
        'Mini Moldorm Cave - Left': s['Light World'][
        'Mini Moldorm Cave - Left'], 'Mini Moldorm Cave - Right': s[
        'Light World']['Mini Moldorm Cave - Right'],
        'Mini Moldorm Cave - Far Right': s['Light World'][
        'Mini Moldorm Cave - Far Right'], 'Mini Moldorm Cave - NPC': s[
        'Light World']['Mini Moldorm Cave - NPC'], 'Ice Rod Cave': s[
        'Light World']['Ice Rod Cave']}, 'Zora Area': {
        'Waterfall Fairy - Left': s['Light World']['Waterfall Fairy - Left'
        ], 'Waterfall Fairy - Right': s['Light World'][
        'Waterfall Fairy - Right'], 'King Zora': s['Light World'][
        'King Zora'], "Zora's Ledge": s['Light World']["Zora's Ledge"]},
        'Saha Hut': {"Sahasrahla's Hut - Left": s['Light World'][
        "Sahasrahla's Hut - Left"], "Sahasrahla's Hut - Middle": s[
        'Light World']["Sahasrahla's Hut - Middle"],
        "Sahasrahla's Hut - Right": s['Light World'][
        "Sahasrahla's Hut - Right"]}, 'Village Of Outcasts': {
        'C-Shaped House': s['Dark World']['C-Shaped House'], 'Chest Game':
        s['Dark World']['Chest Game'], 'Brewery': s['Dark World']['Brewery'
        ]}, 'TT First Four': {"Thieves' Town - Big Key Chest": s[
        'Thieves Town']["Thieves' Town - Big Key Chest"],
        "Thieves' Town - Ambush Chest": s['Thieves Town'][
        "Thieves' Town - Ambush Chest"], "Thieves' Town - Map Chest": s[
        'Thieves Town']["Thieves' Town - Map Chest"],
        "Thieves' Town - Compass Chest": s['Thieves Town'][
        "Thieves' Town - Compass Chest"]}, 'Hookshot Cave': {
        'Hookshot Cave - Bottom Right': s['Dark World'][
        'Hookshot Cave - Bottom Right'], 'Hookshot Cave - Bottom Left': s[
        'Dark World']['Hookshot Cave - Bottom Left'],
        'Hookshot Cave - Top Right': s['Dark World'][
        'Hookshot Cave - Top Right'], 'Hookshot Cave - Top Left': s[
        'Dark World']['Hookshot Cave - Top Left']}, 'Superbunny Cave': {
        'Superbunny Cave - Top': s['Dark World']['Superbunny Cave - Top'],
        'Superbunny Cave - Bottom': s['Dark World'][
        'Superbunny Cave - Bottom']}, 'North Dark World': {'Bumper Cave': s
        ['Dark World']['Bumper Cave'], 'Graveyard Ledge': s['Light World'][
        'Graveyard Ledge']}, 'Smith Sequence': {'Blacksmith': s[
        'Dark World']['Blacksmith'], 'Purple Chest': s['Dark World'][
        'Purple Chest']}, 'Pyramid Fairy': {'Pyramid Fairy - Left': s[
        'Dark World']['Pyramid Fairy - Left'], 'Pyramid Fairy - Right': s[
        'Dark World']['Pyramid Fairy - Right']}, 'Waterfall Fairy': {
        'Waterfall Fairy - Left': s['Light World']['Waterfall Fairy - Left'
        ], 'Waterfall Fairy - Right': s['Light World'][
        'Waterfall Fairy - Right']}, 'Hype Cave': {'Hype Cave - Top': s[
        'Dark World']['Hype Cave - Top'], 'Hype Cave - Middle Right': s[
        'Dark World']['Hype Cave - Middle Right'],
        'Hype Cave - Middle Left': s['Dark World'][
        'Hype Cave - Middle Left'], 'Hype Cave - Bottom': s['Dark World'][
        'Hype Cave - Bottom'], 'Hype Cave - NPC': s['Dark World'][
        'Hype Cave - NPC']}, 'Mire Shed': {'Mire Shed - Left': s[
        'Dark World']['Mire Shed - Left'], 'Mire Shed - Right': s[
        'Dark World']['Mire Shed - Right']}, 'TR Mimic': {
        'Turtle Rock - Chain Chomps': s['Turtle Rock'][
        'Turtle Rock - Chain Chomps'], 'Turtle Rock - Compass Chest': s[
        'Turtle Rock']['Turtle Rock - Compass Chest'],
        'Turtle Rock - Roller Room - Left': s['Turtle Rock'][
        'Turtle Rock - Roller Room - Left'],
        'Turtle Rock - Roller Room - Right': s['Turtle Rock'][
        'Turtle Rock - Roller Room - Right'], 'Turtle Rock - Big Chest': s[
        'Turtle Rock']['Turtle Rock - Big Chest'],
        'Turtle Rock - Big Key Chest': s['Turtle Rock'][
        'Turtle Rock - Big Key Chest'], 'Turtle Rock - Crystaroller Room':
        s['Turtle Rock']['Turtle Rock - Crystaroller Room'],
        'Turtle Rock - Eye Bridge - Bottom Left': s['Turtle Rock'][
        'Turtle Rock - Eye Bridge - Bottom Left'],
        'Turtle Rock - Eye Bridge - Bottom Right': s['Turtle Rock'][
        'Turtle Rock - Eye Bridge - Bottom Right'],
        'Turtle Rock - Eye Bridge - Top Left': s['Turtle Rock'][
        'Turtle Rock - Eye Bridge - Top Left'],
        'Turtle Rock - Eye Bridge - Top Right': s['Turtle Rock'][
        'Turtle Rock - Eye Bridge - Top Right'], 'Turtle Rock - Boss': s[
        'Turtle Rock']['Turtle Rock - Boss'], 'Mimic Cave': s[
        'Death Mountain']['Mimic Cave']}, 'Sphere One Standard': {
        'Lost Woods Hideout': s['Light World']['Lost Woods Hideout'],
        'Mushroom': s['Light World']['Mushroom'], 'Sanctuary': s[
        'Hyrule Castle']['Sanctuary'], 'Sewers - Secret Room - Left': s[
        'Hyrule Castle']['Sewers - Secret Room - Left'],
        'Sewers - Secret Room - Middle': s['Hyrule Castle'][
        'Sewers - Secret Room - Middle'], 'Sewers - Secret Room - Right': s
        ['Hyrule Castle']['Sewers - Secret Room - Right'],
        'Sewers - Dark Cross': s['Hyrule Castle']['Sewers - Dark Cross'],
        'Hyrule Castle - Boomerang Chest': s['Hyrule Castle'][
        'Hyrule Castle - Boomerang Chest'], 'Hyrule Castle - Map Chest': s[
        'Hyrule Castle']['Hyrule Castle - Map Chest'],
        "Hyrule Castle - Zelda's Cell": s['Hyrule Castle'][
        "Hyrule Castle - Zelda's Cell"], "Link's Uncle": s['Hyrule Castle']
        ["Link's Uncle"], 'Secret Passage': s['Hyrule Castle'][
        'Secret Passage'], 'Kakariko Tavern': s['Light World'][
        'Kakariko Tavern'], 'Chicken House': s['Light World'][
        'Chicken House'], 'Kakariko Well - Top': s['Light World'][
        'Kakariko Well - Top'], 'Kakariko Well - Left': s['Light World'][
        'Kakariko Well - Left'], 'Kakariko Well - Middle': s['Light World']
        ['Kakariko Well - Middle'], 'Kakariko Well - Right': s[
        'Light World']['Kakariko Well - Right'], 'Kakariko Well - Bottom':
        s['Light World']['Kakariko Well - Bottom'], "Blind's Hideout - Top":
        s['Light World']["Blind's Hideout - Top"], "Blind's Hideout - Left":
        s['Light World']["Blind's Hideout - Left"],
        "Blind's Hideout - Right": s['Light World'][
        "Blind's Hideout - Right"], "Blind's Hideout - Far Left": s[
        'Light World']["Blind's Hideout - Far Left"],
        "Blind's Hideout - Far Right": s['Light World'][
        "Blind's Hideout - Far Right"], 'Bottle Merchant': s['Light World']
        ['Bottle Merchant'], 'Floodgate Chest': s['Light World'][
        'Floodgate Chest'], 'Sunken Treasure': s['Light World'][
        'Sunken Treasure'], 'Mini Moldorm Cave - Far Left': s['Light World'
        ]['Mini Moldorm Cave - Far Left'], 'Mini Moldorm Cave - Left': s[
        'Light World']['Mini Moldorm Cave - Left'],
        'Mini Moldorm Cave - Right': s['Light World'][
        'Mini Moldorm Cave - Right'], 'Mini Moldorm Cave - Far Right': s[
        'Light World']['Mini Moldorm Cave - Far Right'],
        'Mini Moldorm Cave - NPC': s['Light World'][
        'Mini Moldorm Cave - NPC'], 'Ice Rod Cave': s['Light World'][
        'Ice Rod Cave'], "Sahasrahla's Hut - Left": s['Light World'][
        "Sahasrahla's Hut - Left"], "Sahasrahla's Hut - Middle": s[
        'Light World']["Sahasrahla's Hut - Middle"],
        "Sahasrahla's Hut - Right": s['Light World'][
        "Sahasrahla's Hut - Right"], 'Eastern Palace - Compass Chest': s[
        'Eastern Palace']['Eastern Palace - Compass Chest'],
        'Eastern Palace - Cannonball Chest': s['Eastern Palace'][
        'Eastern Palace - Cannonball Chest'], 'Eastern Palace - Map Chest':
        s['Eastern Palace']['Eastern Palace - Map Chest'], "Aginah's Cave":
        s['Light World']["Aginah's Cave"]}}
    return custom_regions
