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

Q: Sentence: 'the street sign is next to a curved road'. Find frequency of the letter 's'

A: 3
****
Q: Sentence: 'the large modern train is on the train track'. Find frequency of the letter 'm'

A: 1
****
Q: Sentence: 'a laptop computer and flowered computer carrying sleeve'. Find frequency of the letter 'e'

A:
7
****