The Heater<br>The heater at Bobby's house didn't work. It was very cold. Bobby spent a few nights at his friend's house. He saved up money to fix the heater. Bobby called a repairman to fix the heater.
Bobby fixed the heater by himself.
( z1 fix :ARG0 ( z2 person :name ( z3 name :op "Bobby" ) ) :ARG1 ( z4 thing :ARG0-of ( z5 heat ) ) :mod ( z6 by-oneself ) )