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 glass vase sits between two statues'. Find frequency of the letter 'o'

Answer: 1

Question: Sentence: 'a bathroom that has it's lights turned on'. Find frequency of the letter 'h'

Answer: 4

Question: Sentence: 'a brown animal behind a glass wall on a water tank'. Find frequency of the letter 'r'

Answer:
2