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 pizza is in a box on a table outside'. Find frequency of the letter 'u'

Answer: 1


Question: Sentence: 'a stop sign near a rail road crossing sign'. Find frequency of the letter 'g'

Answer: 3


Question: Sentence: 'a cake and the different stages of it being served and eaten'. Find frequency of the letter 'a'

Answer:
6