phrasetable: use a document map and build separate domain indices in addition to the global one
phrasetable: use a document map and build separate domain indices in addition to the global one

ModernMT/MMT,letconex/MMT,ModernMT/MMT,letconex/MMT,ModernMT/MMT,letconex/MMT,letconex/MMT,letconex/MMT,letconex/MMT,ModernMT/MMT,ModernMT/MMT