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

Q: Sentence: 'a man with a skateboard that is in the street'. Find frequency of the letter 'o'

A: 1
****
Q: Sentence: 'a boy that is sitting at a table with pizza'. Find frequency of the letter 's'

A: 2
****
Q: Sentence: 'the french bread pizza just came out of the oven'. Find frequency of the letter 'b'

A:
1
****