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040000 tree d00c50f8297072ad213eccf37450b6be37df4ace	rule
040000 tree 9766f3ee815579ba612511e2570472a71da311fd	schema
040000 tree ca2795de299abc2495ab6a76a28abca8b1be9f85	tuple
040000 tree d294ad43abb3bb8e5bdb5838283a98520a0b3a60	type
040000 tree 80d986e73249962449bd1a95e620b078daa6096b	util
040000 tree 1d026a782ee985c956010059f2169e1dee97a9c6	validation