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

Q: Sentence: 'group of cars on the road with the sun setting behind it'. Find frequency of the letter 'd'

A: 2
****
Q: Sentence: 'a downhill skier with snow plumes behind them'. Find frequency of the letter 'i'

A: 4
****
Q: Sentence: 'a big travel van parked in a loading lane of a hotel'. Find frequency of the letter 'l'

A:
4
****
