be 0 1
bef 0 2
beo 0 1
ca 0 1
cao 0 1
f 0 2
h 0 2
hf 0 1
k 0 2
kf 0 1
li 0 2
lif 0 1
lio 0 2
mg 0 1
mgo 0 1
mgs 0 1
na 0 2
nao 0 2
o 0 3
s 0 3