Eye<br>Tom was a young man. He noticed his vision was not perfect. He went to the optometrist. He was prescribed contacts. Tom loved the contacts and his perfect vision.
tom was less than 40
Never stated, young is relative and system assumes it is explicit
( z0 less-than :domain ( z1 person :name ( z2 name :op "Tom" ) ) :op ( z3 temporal-quantity :quant 40 :unit ( z4 year ) ) )
(z0 / less-than
    :domain (z1 / person
                :name (z2 / name
                          :op1 "Tom"))
    :op1 (z3 / temporal-quantity
             :quant 40
             :unit (z4 / year)))
tom was less than 40
z1 :name z2
z2 :op1 1
z0 :domain z1
z0 :op1 z3
z3 :unit z4
z3 :quant 0