pwsb qwsb2 rwsb2v swsb twsb2

entb2 fntb2v gntb hntb2 intb2v

3dub2v 4dub 5dub2 6dub2v 7dub

s4ub t4ub2 u4ub2v v4ub w4ub2

hvvb2 ivvb2v jvvb kvvb2 lvvb2v