040000 tree 722da1950e71c5735bffd6426e1fd7fba52fb014	canExtract
040000 tree 6e5ab3b11389fa5d22d3c271544e724e3a7d7e42	canExtract13
040000 tree 1314fedf37e76d7a9c8496f279bc06d9b250c3e6	canExtract17
040000 tree 3b4a7eb6710ab77b0d22391e6b1821f5342c37a6	cannotExtract
040000 tree c6957eacc7e756c531bb3df22ab08b0dd1a085eb	cannotExtract17
040000 tree 5bec4b55f4d806602f00cbd7f5a41b2cab922b85	nameGuessing