Month is a different concept from Date. Date is related to Palm. 
Concentration is a type of Property. Constitution is a type of Property. Constitution is related to Paper. Paper is related to Piece. 
Month <--DistinctFrom--> Date <--RelatedTo--> Palm 
Concentration --IsA--> Property <--IsA-- Constitution <--RelatedTo--> Paper <--RelatedTo--> Piece 