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 bird outside standing on a table looking up'. Find frequency of the letter 'b'

Answer: 2


Question: Sentence: 'a dog has found a rather large stick for playing fetch'. Find frequency of the letter 't'

Answer: 3


Question: Sentence: 'a clock standing on a wood surface, with a polished metal frame, reads 11:06'. Find frequency of the letter 'n'

Answer:
3