In this task, you need to count the number of times the given letter appears in the given sentence.
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Question: Sentence: 'a display case filled with lots of different clocks'. Find frequency of the letter 'w'

Answer: 1


Question: Sentence: 'surfboard being displayed in stor window with clothes behind it'. Find frequency of the letter 't'

Answer: 4


Question: Sentence: 'a group of young men playing a game of frisbee'. Find frequency of the letter 'r'

Answer:
2