Reward<br>Hillary had poor grades in her math class. Her mother told her she needed to improve her grades. She promised Hillary a trip if she got her grades up. Hillary worked hard and got her grade up to a B. Her mother planned a trip to a local amusement park.
Hillary is great at math. 
( z1 great :topic ( z2 mathematics ) :domain ( z3 person :name ( z4 name :op "Hillary" ) ) )