Happy is related to Fellow. Fellow is a synonym of Boyfriend. 
you are likely to find Clothing in/at/on House. Housing is a form of House. Block is a type of Housing. Block is a synonym of Roof. 
Happy <--RelatedTo--> Fellow <--Synonym--> Boyfriend 
Clothing --AtLocation--> House <--FormOf-- Housing <--IsA-- Block <--Synonym--> Roof 