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: 'In just the last 2 days the Israelis have killed 29 Palestinians , and most of them are innocent civilians including children .', Argument/Subject 1: 'israeli', Argument/Subject 2: 'palestinian'
[A]: be kill by


[Q]: Sentence: 'The SpamButcher anti-spam tool works with Outlook , Outlook Express , Eudora , Netscape or any other POP3 compatible e-mail client .', Argument/Subject 1: 'spambutcher', Argument/Subject 2: 'outlook'
[A]: work with


[Q]: Sentence: 'Mr Obama has already sat down the Chairman of the Joint Chiefs of Staff and General David Petraeus , head of US Central Command since he was sworn in as president last week .', Argument/Subject 1: 'petraeus', Argument/Subject 2: 'us central command'
[A]:
be head of