040000 tree f614a1fce2d958c8b3d851a537abdc68191e6514	parser_feature
040000 tree 3dd10b7ec04dd10b07779c5313c1d099b6d0a2c0	tokenizer
040000 tree 4eb19afd1166cffdcb8bc59b45bdfb4525326d16	tree-construction