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 president of', Sentence: 'Dwight D. Eisenhower , 34th President of the United States , born at Denison , Tex. , October 14 , 1890 .'

A: President
****
Q: Given Relationship: 'be analyse use', Sentence: 'Data were analysed using SPSS 12.0.1 .'

A: analysed
****
Q: Given Relationship: 'file to', Sentence: 'It is a powerful software for ripping audio CD tracks to files of audio formats MP3 , WAV , WMA , and OGG Vorbis on-the-fly .61 .'

A:
files
****