Bed is related to Flat. Flat is related to Table. 
Preparation is related to Food. you are likely to find Hair in/at/on Food. Hair is related to Ear. Ear is related to Skull. 
Bed <--RelatedTo--> Flat <--RelatedTo--> Table 
Preparation <--RelatedTo--> Food <--AtLocation-- Hair <--RelatedTo--> Ear <--RelatedTo--> Skull 