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

Q: Sentence: 'a room with a big screen television and a couch'. Find frequency of the letter 'h'

A: 2
****
Q: Sentence: 'two computers and a laptop set up on a desk'. Find frequency of the letter 'r'

A: 1
****
Q: Sentence: 'the cows in the field are laying down by the water'. Find frequency of the letter 's'

A:
1
****