Appendicitis<br>Joe didn't feel well after work. He had very bad pain in his abdomen. Joe went to the emergency room. It was discovered that Joe has appendicitis. Surgeons removed Joe's appendix.
Surgeons removed Joe's appendix in the emergency room..
While the text says Joe went to the emergency room, it is not certain that is where the operation took place [they could have transferred him to the general hospital, for instance, or a specialist]. The model assumed.
( z1 remove :ARG0 ( z2 person :ARG0-of ( z3 surgery ) ) :ARG1 ( z4 appendix :part-of ( z5 person :name ( z6 name :op "Joe" ) ) ) :location ( z7 room :mod ( z8 emergency ) ) )