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: 'open on', Sentence: 'Registration is now open for the forthcoming test administrations on January 21 and February 10 , 2007 .'
open

Given Relationship: 'be group in', Sentence: 'By plotting the progress of three foreign-born Hispanic age cohorts who entered the United States by 1980 and three native born Hispanic age groups , it is possible to evaluate the extent to which particular groups are making progress over time .'
groups

Given Relationship: 'be president of', Sentence: 'President Bush 's nominee for World Bank president Paul Wolfowitz , Congressional Testimony , 6/6/96 We hear a lot of talk about the root causes of terrorism marginal tax rate this is your combined state and federal tax rate year mortgage adjustable rate mortgage refinance interest savings .'

president