Si
xx   1 xxsi2   
H    1 hsi        2 hsixx    
H    1 hsi        2 hsixx        3 dih4   
H    1 hsi        2 hsixx        3 dih5   
variables
hsi        1.53931965
hsixx      121.55816376
xxsi2       1.000000
dih4        120.000
dih5        240.000