Deep Puddle<br>Tom was driving in the rain. He noticed a large puddle up ahead. He figured he could drive over it. It turned out to be much deeper. Tom's car was half swallowed up.
Tom's car was 50% underwater.
Half swallowed up suggests 50% underwater
( z1 underwater :domain ( z2 car :poss ( z3 person :name ( z4 name :op "Tom" ) ) ) :quant ( z5 percentage-entity :value 50 ) )