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

Q: Sentence: 'a man walking a large elephant down a dirt road'. Find frequency of the letter 'g'

A: 2
****
Q: Sentence: 'a close up of a train on a track in the dark'. Find frequency of the letter 'a'

A: 6
****
Q: Sentence: 'an image of a street sign with a corner restaurant'. Find frequency of the letter 'u'

A:
1
****