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 ...'
opened