Moment is related to Hour. Hour is a different concept from Year. Season is part of Year. 
Water is related to Pot. Pot can be used for Storage. Storage is a type of Maintenance. 
Moment <--RelatedTo--> Hour <--DistinctFrom--> Year <--PartOf-- Season 
Water <--RelatedTo--> Pot --UsedFor--> Storage --IsA--> Maintenance 