040000 tree 558e9db2b54f4b38ebb7c187c713dac8af31458e	spout
040000 tree 526da4e91ed9a148b702c6c8f86358d177270ae8	topology
040000 tree 82e25e085477b2b5d1a4f20659cdb3225e382755	trident
040000 tree 917ae17e5dc5e97cfbeb66e3ab8b4d8486a4a519	util