you are likely to find Wheelchair in/at/on Home. Home is related to Design. Design is related to Functional. 
Accusation is related to Blame. Blame is a synonym of Pick. Pick is a type of Gather. 
Wheelchair --AtLocation--> Home <--RelatedTo--> Design <--RelatedTo--> Functional 
Accusation <--RelatedTo--> Blame <--Synonym--> Pick --IsA--> Gather 