Light is related to Smoke. Smoke is related to Pipe. Drain is a type of Pipe. 
Divorce is related to Settlement. Settlement is a synonym of Village. Pale is a type of Village. Pale is related to Loose. 
Light <--RelatedTo--> Smoke <--RelatedTo--> Pipe <--IsA-- Drain 
Divorce <--RelatedTo--> Settlement <--Synonym--> Village <--IsA-- Pale <--RelatedTo--> Loose 