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

Q: Sentence: 'two zebra stand near the wooden posts on a building'. Find frequency of the letter 't'

A: 4
****
Q: Sentence: 'a train on a train track going through a bunch of trees'. Find frequency of the letter 'u'

A: 2
****
Q: Sentence: 'a couple of individuals are getting to know how to have fun'. Find frequency of the letter 'u'

A:
3
****