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

Q: Sentence: 'a person riding a camel in front of a truck'. Find frequency of the letter 't'

A: 2
****
Q: Sentence: 'a picture of a machine built next to a street'. Find frequency of the letter 'x'

A: 1
****
Q: Sentence: 'a dog looking out a window next to table with laptop'. Find frequency of the letter 'p'

A:
2
****