Tile is part of Roof. you are likely to find Tile in/at/on Wall. Wall is related to Large. Large is related to Oak. 
Sight is related to Observe. Observe is a synonym of Discover. Discover is a synonym of Uncover. Uncover is related to Find. 
Roof <--PartOf-- Tile --AtLocation--> Wall <--RelatedTo--> Large <--RelatedTo--> Oak 
Sight <--RelatedTo--> Observe <--Synonym--> Discover <--Synonym--> Uncover <--RelatedTo--> Find 