Glass is related to Tall. Tall is related to Mountain. you are likely to find Mountain in/at/on Picture. you are likely to find Picture in/at/on Shelf. 
Genetic is related to Cell. Cell is related to Room. 
Glass <--RelatedTo--> Tall <--RelatedTo--> Mountain --AtLocation--> Picture --AtLocation--> Shelf 
Genetic <--RelatedTo--> Cell <--RelatedTo--> Room 