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

Q: Sentence: 'a large motorcycle that has a man dressed in old clothing next to it'. Find frequency of the letter 'a'

A: 6
****
Q: Sentence: 'a burning wood stove has a tea pot sitting on top of it and is full of wood'. Find frequency of the letter 'a'

A: 5
****
Q: Sentence: 'a black bear climbs a hill of mossy rocks'. Find frequency of the letter 'a'

A:
4
****