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 woman in a messy kitchen with a child'. Find frequency of the letter 'a'

Answer: 4


Question: Sentence: 'the sun goes down over a bike tied to a bench at the beach'. Find frequency of the letter 't'

Answer: 5


Question: Sentence: 'a meal with soup and salad for lunch'. Find frequency of the letter 'a'

Answer:
5