The ham may not be entirely submerged in liquid  no matter  it will partially cook in its own steam, and you can turn it over during cooking. Bring the ham to the boil, then lower the heat to a gentle simmer, partially cover with a lid and leave to cook for 1 hour. Follow Nigel on Twitter @NigelSlater Turn the ham over halfway through cooking. Remove from the oven, but leave it turned on.
The hamburger is submerged under water for the steam.
( z0 submerge :purpose ( z1 steam ) :ARG1 ( z2 hamburger ) :ARG4 ( z3 under :op ( z4 water ) ) )
(z0 / submerge-01
    :purpose (z1 / steam-02)
    :ARG1 (z2 / hamburger)
    :ARG4 (z3 / under
              :op1 (z4 / water)))
The hamburger is submerged under water for the steam .
z0 :ARG1 z2
z0 :ARG4 z3
z3 :op1 z4
z0 :purpose z1