Cocaine is related to Blow. Punch is a type of Blow. Punch is related to Manual. 
Flag is related to Color. Color is related to Eye. Eye is the opposite of Mouth. Mouth can be used for Speak. 
Cocaine <--RelatedTo--> Blow <--IsA-- Punch <--RelatedTo--> Manual 
Flag <--RelatedTo--> Color <--RelatedTo--> Eye <--Antonym--> Mouth --UsedFor--> Speak 