Envelope is a type of Curve. Envelope is related to White. White is related to Cow. Cow is related to Large. 
Do is related to Flow. Flow is the opposite of Hold. Hold is related to Pause. Pause is related to Temporary. 
Curve <--IsA-- Envelope <--RelatedTo--> White <--RelatedTo--> Cow <--RelatedTo--> Large 
Do <--RelatedTo--> Flow <--Antonym--> Hold <--RelatedTo--> Pause <--RelatedTo--> Temporary 