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 dog laying on the back of a boat in the water'. Find frequency of the letter 't'

Answer: 4


Question: Sentence: 'party cakes in plastic containers, with a cake with a plastic santa claus and reindeer on top'. Find frequency of the letter 's'

Answer: 6


Question: Sentence: 'a happy bus is pulling up to a bus stop'. Find frequency of the letter 's'

Answer:
4