Mechanic<br>Eric was fascinated by his grandfather. His grandfather was a mechanic. He admired that his grandfather could fix anything that went wrong. He wanted to be able to do the same. Now Eric too is a mechanic and able to fix anything that goes wrong.
Eric's grandfather use to work on cars.
His dad was a mechanic and mechanic is a term usually associated with people that work on cars. Also, since he could fix anything mechanical it's a given  that he used to work on cars.
( z1 work :ARG0 ( z2 person :ARG0-of ( z3 have-rel-role :ARG1 ( z4 person :name ( z5 name :op "Eric" ) ) :ARG2 ( z6 grandfather ) ) ) :ARG1 ( z7 car ) :time ( z8 use ) )