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

Q: Sentence: 'a man with headphones on is hunched over a sink while being recorded'. Find frequency of the letter 'd'

A: 4
****
Q: Sentence: 'a bird in a tree looking up at branches'. Find frequency of the letter 'e'

A: 3
****
Q: Sentence: 'a person in red shirt is sitting on an elephant'. Find frequency of the letter 'i'

A:
5
****