Bent Over<br>The man bent over. He felt a pain in his back. He sat on the ground. The pain intensified. He screamed for help from the ground.
the man had to sit down because of his injured back then it got worse.
( z1 and :op ( z2 obligate :ARG2 ( z3 sit-down :ARG1 ( z4 man ) :ARG1-of ( z5 cause :ARG0 ( z6 injure :ARG1 z4 :time ( z7 back ) ) ) ) ) :op ( z8 worsen :ARG1 ( z9 it ) :time ( z10 then ) ) )