Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

Q: Sentence: 'But Obama supporters can have at least some solace to know that there has been no recent Pennsylvania poll with McCain leading Obama .', Argument/Subject 1: 'mccain', Argument/Subject 2: 'obama'

A: lead
****
Q: Sentence: 'PLACE OF PAYMENT - Until Tenant shall have been given notice otherwise by Landlord under the provisions of Article 17 hereof , Tenant shall pay the Net Rent to Landlord at c/o LRICO , 314 South Galena , Aspen , Colorado 81611 .', Argument/Subject 1: 'tenant', Argument/Subject 2: 'landlord'

A: pay
****
Q: Sentence: 'In " Genesis" , Adam and Eve 's sons , Cain and Abel , offer sacrifices to God .', Argument/Subject 1: 'cain', Argument/Subject 2: 'adam'

A:
be son of
****