People can be used for Humanity. People is a type of Dancing. Dancing is related to Follow. Follow is related to Walk. 
Flash is related to Lighting. Lighting is related to Burn. Burn is related to Loss. 
Humanity <--UsedFor-- People --IsA--> Dancing <--RelatedTo--> Follow <--RelatedTo--> Walk 
Flash <--RelatedTo--> Lighting <--RelatedTo--> Burn <--RelatedTo--> Loss 