['it', 'begin', 'EmptyParameter', 'overload', 'to']
['<PRP>', 'begin-55.1', 'EmptyParameter', "Synset('weight.n.04')", 'to']
It begins to overload while still on board.
<PRP> begins to Synset('weight.n.04') while still on Synset('electronic_device.n.01').