Input example: water molecule

The h2o.wfn file begins by the following lines:

H2O
GAUSSIAN 5 MOL ORBITALS 30 PRIMITIVES 3 NUCLEI
O 1 (CENTRE 1) 0.00000000 0.00000000 0.22212920 CHARGE = 8.0
H 2 (CENTRE 2) 0.00000000 1.43441917 -0.88851679 CHARGE = 1.0
H 3 (CENTRE 3) 0.00000000 -1.43441917 -0.88851679 CHARGE = 1.0

The x=0 and y=0 planes can be used as symmetry planes