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 baseball themed birthday cake is on a serving tray'. Find frequency of the letter 'g'

Answer: 1

Question: Sentence: 'a tennis player that is running to get the tennis ball'. Find frequency of the letter 't'

Answer: 7

Question: Sentence: 'a large dog is laying on top of a woman on a couch'. Find frequency of the letter 'm'

Answer:
1