斤半！
[{"id": "1", "form": "斤", "pos": "NOUN", "head": "0", "deprel": "root"}, {"id": "2", "form": "半", "pos": "NUM", "head": "1", "deprel": "conj"}, {"id": "3", "form": "！", "pos": "PUNCT", "head": "1", "deprel": "punct"}]