you are likely to find Human in/at/on Room. Room is related to Porch. Porch is part of House. House is related to Construction. 
Introduce is related to Formal. Formal is related to Manner. Manner is a synonym of Fashion. 
Human --AtLocation--> Room <--RelatedTo--> Porch --PartOf--> House <--RelatedTo--> Construction 
Introduce <--RelatedTo--> Formal <--RelatedTo--> Manner <--Synonym--> Fashion 