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 bedroom with a neatly made bed and a laptop'. Find frequency of the letter 'l'

Answer: 2


Question: Sentence: 'a small boy in a high chair eating a cupcake'. Find frequency of the letter 'i'

Answer: 4


Question: Sentence: 'four people sitting on a ski lift going up a snowy mountain'. Find frequency of the letter 'p'

Answer:
3