You will be given a definition of a task first, then some input of the task.
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 in', Sentence: 'IN THE main entrance of Matraville High School in south Sydney stands a marble plaque announcing that the school was opened on September 27 , 1963 , by Premier R J Heffron in the presence of the Education Department 's director-general Harold Wyndham.These two men were towering figures in post-war ...'
Output:
opened