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

Q: Sentence: 'a group of men standing on the side of a boat'. Find frequency of the letter 'o'

A: 5
****
Q: Sentence: 'a baseball player dropping his bat and starting to run'. Find frequency of the letter 'o'

A: 2
****
Q: Sentence: 'unmade bed with two white pillows and white sheets'. Find frequency of the letter 'i'

A:
4
****