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 picture of a machine built next to a street'. Find frequency of the letter 'x'

Answer: 1


Question: Sentence: 'a boy swinging a bat while playing baseball'. Find frequency of the letter 'h'

Answer: 1


Question: Sentence: 'a traffic light with a street sign in front of a palm tree'. Find frequency of the letter 't'

Answer:
7