Poll is related to Voting. Voting is related to Committee. Committee is related to Chairman. 
Fat is related to Energy. Energy is related to Move. Move is a different concept from Copy. Copy is related to Identical. 
Poll <--RelatedTo--> Voting <--RelatedTo--> Committee <--RelatedTo--> Chairman 
Fat <--RelatedTo--> Energy <--RelatedTo--> Move <--DistinctFrom--> Copy <--RelatedTo--> Identical 