Surgery<br>My brother took his brother-in-law in for surgery yesterday. It was day surgery. His brother-in-law has polio and needs crutches. When he was released he was groggy and slow. It took an hour to get him up the stairs.
His brother-in-law cannot walk unaided
( z1 possible :polarity - :ARG1 ( z2 walk :ARG0 ( z3 person :ARG0-of ( z4 have-rel-role :ARG1 ( z5 he ) :ARG2 ( z6 brother-in-law ) ) ) :manner ( z7 aid :polarity - ) ) )