Spin is a type of Stream. you are likely to find Stone in/at/on Stream. 
Mainstream is related to Popular. Popular is related to Variety. Variety is a synonym of Mixture. Mixture is related to Combined. 
Spin --IsA--> Stream <--AtLocation-- Stone 
Mainstream <--RelatedTo--> Popular <--RelatedTo--> Variety <--Synonym--> Mixture <--RelatedTo--> Combined 