040000 tree 04f7efed38270be5415d53c380f6da5136455947	acceptance
040000 tree 92e3efb4c8dc76089d90cb8092c2f60069238f36	backend
040000 tree 507f2e7b556be71fbf5408e6dda7eeb0b89883f6	restapi
040000 tree 1516d379c161c3963e731810c1ca25360110590b	util