Straw is related to Long. Long is related to Hour. Hour is related to Segment. 
Flat can be used for Living. you are likely to find Flat in/at/on Car. Car is related to Fill. Bath can be used for Fill. 
Straw <--RelatedTo--> Long <--RelatedTo--> Hour <--RelatedTo--> Segment 
Living <--UsedFor-- Flat --AtLocation--> Car <--RelatedTo--> Fill <--UsedFor-- Bath 