From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.

Given Relationship: 'endorse', Sentence: 'Colin Powell endorsed Obama because he 's black .'
endorsed

Given Relationship: 'be cause of', Sentence: 'The founder of Alive and Well Los Angeles has been on many TV shows promoting the fact that HIV is not the cause of AIDS .'
cause

Given Relationship: 'buy', Sentence: 'Buy Generic Viagra , Cialis , Viagra Professional , Levitra , Soma , Tramadol , Penis Growth Pills Online at Online Pharmacy .'

Buy