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

Q: Sentence: 'a microwave oven with a yellow note on the door'. Find frequency of the letter 'w'

A: 3
****
Q: Sentence: 'two elephants facing each other touching trunks in an enclosure'. Find frequency of the letter 'f'

A: 1
****
Q: Sentence: 'a woman feeding a lot of cats outside'. Find frequency of the letter 'e'

A:
3
****