who21 xho21g yho2 zho21 0ho21g
l8o21g m8o2 n8o21 o8o21g p8o2
azp2 bzp21 czp21g dzp2 ezp21
zpq21 0pq21g 1pq2 2pq21 3pq21g
ogr21g pgr2 qgr21 rgr21g sgr2