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

Q: Sentence: 'a man opening up a package sitting on a couch'. Find frequency of the letter 'n'

A: 5
****
Q: Sentence: 'a couple of items that are on the wall'. Find frequency of the letter 'm'

A: 1
****
Q: Sentence: 'a man wearing eye glasses is staring at the camera in front of a room'. Find frequency of the letter 'i'

A:
4
****