mm, apparently an altar.
nn, perhaps a bundle or roll.
oo, apparently a knife or sword; perhaps pal.
pp, apparently a tree.
qq, apparently the sacred artificial tree of Asshur.
rr, a circle. Compare the cuneiform sa, “middle.”
ss, twins. As in Egyptian.
tt resembles the Chinese emblem for “small.”
uu, a pyramid or triangle.
vv, apparently a hand or glove, pointing downwards. Possibly tu or dun for “down.”