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

Q: Sentence: 'a bird on a tree is flapping its wings'. Find frequency of the letter 'o'

A: 1
****
Q: Sentence: 'an elephant with broken tusks stands in front of a hill and boulders'. Find frequency of the letter 'n'

A: 7
****
Q: Sentence: 'a man wearing jeans sitting on a parked motorcycle'. Find frequency of the letter 'm'

A:
2
****