"The Petőfi Literary Museum (PLM) is a major Hungarian museum in Budapest. It was founded in 1954, as the successor organisation to Petőfi House. It was named to honour the memory of Sándor Petőfi." - (en.wikipedia.org 11.08.2021)
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(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)