Grey<br>I went to the store to buy a new phone. The one I wanted was available. The salesperson showed me three different colors. I had a hard time choosing. I finally decided on the grey model.
They had no trouble picking the grey model
( z1 have-trouble :polarity - :ARG0 ( z2 they ) :ARG1 ( z3 pick :ARG0 z2 :ARG1 ( z4 model :ARG1-of ( z5 gray ) ) ) )