***,h2o
geom={o;
      h1,o,r;
      h2,o,r,h1,theta}
r=0.97 ang
theta=104

basis={
default,avtz
set,df
default,avtz/mp2fit   !density fitting basis
set,jk
default,avtz/jkfit    !density fitting basis for Fock and exchange matrices
set,ri
default,avtz/optri    !ri cabs basis
}
hf
ccsd(t)-f12,df_basis=df,df_basis_exch=jk,ri_basis=ri