Definition: You are given a sentence and a question in the input. The information provided in the sentence should be enough to answer the question. You're expected to write the correct answer. Do not use any facts other than those provided in the sentence.
Input: Sentence: Then when Henry came over, Ralph started making spooky sounds and scared Henry back to the other side of the lake. 
Question: How did Ralph trick Henry into thinking the lake was scary?
Output:
Ralph started making spooky sounds.