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

Q: Sentence: 'an area that has surrounded by a metal fence'. Find frequency of the letter 'o'

A: 1
****
Q: Sentence: 'a construction sign is displayed on a street'. Find frequency of the letter 'i'

A: 4
****
Q: Sentence: 'a man sitting on an elephant in the middle of the water'. Find frequency of the letter 't'

A:
6
****