Year is related to Yard. Yard is related to Outdoor. Outdoor is related to Sky. you are likely to find Sky in/at/on Photo. 
Shell is related to Gas. Gas can be used for Burning. 
Year <--RelatedTo--> Yard <--RelatedTo--> Outdoor <--RelatedTo--> Sky --AtLocation--> Photo 
Shell <--RelatedTo--> Gas --UsedFor--> Burning 