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

Q: Sentence: 'a boy swinging a bat while playing baseball'. Find frequency of the letter 'h'

A: 1
****
Q: Sentence: 'an airplane is being towed away from the jet bridge'. Find frequency of the letter 's'

A: 1
****
Q: Sentence: 'the eat-in kitchen and pot rack show the efficient use of the small space in this apartment'. Find frequency of the letter 'e'

A:
10
****