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

Q: Sentence: 'a girl that has a kite in the air'. Find frequency of the letter 'r'

A: 2
****
Q: Sentence: 'a bunch of fruit sitting in a bowl, its overflowing'. Find frequency of the letter 't'

A: 4
****
Q: Sentence: 'group of young kids on snowboards with man in red snow suit in foreground'. Find frequency of the letter 'u'

A:
4
****