In this task, you need to count the number of times the given letter appears in the given sentence.

Q: Sentence: 'a bed with a dog laying on it next to two laptop computers'. Find frequency of the letter 'n'

A: 3
****
Q: Sentence: 'a small boat and a large boat on a river near a city'. Find frequency of the letter 'a'

A: 10
****
Q: Sentence: 'a bowl of pasta sits on a table with a candle'. Find frequency of the letter 's'

A:
3
****