Task: Story Composition
Input (English): Premise: A boy pick up a rock at the beach. 
 Initial Context: He felt the texture and inspected it for smoothness. 
 Original Ending: He approved of the rock for a skipping stone. The boy brought his arm back and waited for calm water. During a lull he threw the stone and it skipped 11 times on the water. 
 Counterfactual Context: It failed his inspection for texture and smoothness.
Output (English): After a few minutes he finally found one he approved for a skipping stone. The boy brought his arm back and waited for calm water. During a lull he threw the stone and it skipped 11 times on the water.