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 holds the reins of a saddled horse'. Find frequency of the letter 'm'

Answer: 1


Question: Sentence: 'a yellow and green train on a train track in a wooded area'. Find frequency of the letter 'o'

Answer: 4


Question: Sentence: 'a dining room that has a table and chairs'. Find frequency of the letter 'm'

Answer:
1