Tom wouldn't listen.<br>Tom's boss warned him repeatedly about drinking at the store. One night, a new girl started and Tom worked the shift with her. He got drunk and yelled at a customer about nothing. The new girl phoned the boss, who came down to the shop. Tom was fired on the spot, the new girl taking over his position.
The boss yelled at Tom for drinking. 
At no point does the context state the Tom was yelled at by his boss, but simply warned and then eventually fired. The type of reprimanding the boss did is up to interpretation, making the statement I provided neither true nor false. The system may have equated yelling with the boss' actions. 
( z1 yell :ARG0 ( z2 boss ) :ARG1 ( z3 drink :ARG0 ( z4 person :name ( z5 name :op "Tom" ) ) ) :ARG2 z4 )