Life is a type of Motivation. Body is a type of Life. Foot is part of Body. Foot is related to Small. 
Observation is related to Notice. Notice is related to Public. Public is related to Toilet. 
Motivation <--IsA-- Life <--IsA-- Body <--PartOf-- Foot <--RelatedTo--> Small 
Observation <--RelatedTo--> Notice <--RelatedTo--> Public <--RelatedTo--> Toilet 