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.

[Q]: Given Relationship: 'be battle', Sentence: 'I nietzsche BACTRIM was battling Lyme , BACTRIM got in same tempra .'
[A]: battling

[Q]: Given Relationship: 'be city in', Sentence: 'Mumbai is the second most populous city in India and the country 's chief principal west seaport .'
[A]: city

[Q]: Given Relationship: 'be president of', Sentence: 'Afghanistan president Hamid Karzai met Prime Minister Manmohan Singh at the Hyderabad House in New Delhi on Monday .'
[A]:
president