Phone is related to Instrument. Instrument is related to Gun. Gun is related to Warm. 
Talk is related to Protest. Protest is the opposite of Support. Supportive is derived from Support. 
Phone <--RelatedTo--> Instrument <--RelatedTo--> Gun <--RelatedTo--> Warm 
Talk <--RelatedTo--> Protest <--Antonym--> Support <--DerivedFrom-- Supportive 