040000 tree 199dfeffabccdef3b83ef9ef39e57ba1b9409cb6	addons
040000 tree a35068a2f64ff0927d7139ef86b6615b5b2f9fa2	cde
040000 tree a8a420c050646c1c96f263bea0395240cd17305f	check
040000 tree 1df0d3ab15a26b11f772941712356be1c53c1762	explain
040000 tree d6cf7815296d7b97d27ff764058050ab60dbb067	query
040000 tree 8d7edd4967c3ebb6751fd899419d7d20a9b20b23	searchStrategy
040000 tree 3ded22d914906eb944087c916916d385235eb9c6	statistics
040000 tree 47695b37bda95cab8c3f83349153c3f4254564c0	testing
040000 tree 551f5deff3e7ce499ec79b6cedd2c16ec7000c88	utils