mr2o
nr2oh
or2ohm
pr2o
qr2oh
bi3oh
ci3ohm
di3o
ei3oh
fi3ohm
083ohm
183o
283oh
383ohm
483o
pz4o
qz4oh
rz4ohm
sz4o
tz4oh
eq5oh
fq5ohm
gq5o
hq5oh
iq5ohm