The Potatoes<br>Kevin was making a side dish for Thanksgiving. He decided on mashed potatoes. He boiled the potatoes and mashed them in a bowl. Then he added butter and sour cream. His guests ate them all up!
Kevin made butter and sour cream and added it to the mashed potatoes in a bowl.
I used a lot of extra detail to distract from the fact he never said whether he made the sour cream and butter or bought them from the store. Because the system thought the question was so probable of being correct I think adding extra details that were right helped increase the "correct" probability.
( z1 and :op ( z2 make :ARG0 ( z3 person :name ( z4 name :op "Kevin" ) ) :ARG1 ( z5 and :op ( z6 butter ) :op ( z7 cream :mod ( z8 sour ) ) ) ) :op ( z9 add :ARG0 z3 :ARG1 z5 :ARG2 ( z10 potato :ARG1-of ( z11 mashed ) ) :location ( z12 bowl ) ) )