Theme is related to Point. Point is related to Act. Stop is a type of Act. Stop is a different concept from Music. 
Mineral is related to Oil. Oil is related to Energy. Energy is related to Invisible. 
Theme <--RelatedTo--> Point <--RelatedTo--> Act <--IsA-- Stop <--DistinctFrom--> Music 
Mineral <--RelatedTo--> Oil <--RelatedTo--> Energy <--RelatedTo--> Invisible 