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: 'group of cars on the road with the sun setting behind it'. Find frequency of the letter 'd'

Answer: 2

Question: Sentence: 'two men are playing a video game as another sits watching'. Find frequency of the letter 'a'

Answer: 7

Question: Sentence: 'a fork that is next to a slice of cake on a plate'. Find frequency of the letter 'l'

Answer:
2