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

Q: Sentence: 'a plane with smoke coming from the tips of both wings'. Find frequency of the letter 'c'

A: 1
****
Q: Sentence: 'a man in costume talking on a cell phone'. Find frequency of the letter 'm'

A: 2
****
Q: Sentence: 'a train on a train track going through a bunch of trees'. Find frequency of the letter 'u'

A:
2
****
