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: 'be chairman of', Sentence: 'Alan Greenspan , the Chairman of the U.S. Federal Reserve , the current U.S. administration , and U.S. politicians of all stripes could teach a few lessons to those who dictated the level of inflation ahead of them .'
Chairman

Given Relationship: 'be region of', Sentence: 'The Murcia region of Spain on the Costa Blanca is benefiting from huge investment .'
region

Given Relationship: 'land in', Sentence: 'Christopher Columbus landed at the island in 1493 on his second voyage to the New World , naming it St Maarten or Saint-Martin depending on your viewpoint - as the island has long been part of both Dutch and French territories .'

landed