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', Sentence: 'Registration will open on February 1st , 2009 at 00:01 MA time and will close on February 10th , 2009 at 23 :59 MA time .'
open

Given Relationship: 'be government of', Sentence: 'Although the former Taliban government in Afghanistan sponsored al-Qaeda , the radical group led by Saudi exile Osama bin Laden , the United States did not recognize the Taliban as a legitimate government and thus did not list it as a state sponsor of terrorism .'
government

Given Relationship: 'be head of', Sentence: 'In addition , the central government headed by Interim President Hamid Kharzai has not yet succeeded in extending its authority over key regional leaders and warlords who control most of the countryside , while renewed cultivation of opium poppies is contributing to their ability to resist demands from Kabul .'

headed

