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

Q: Sentence: 'a woman is playing an interactive video game'. Find frequency of the letter 't'

A: 2
****
Q: Sentence: 'a gourmet looking hamburger with fries on a dining table with some wine'. Find frequency of the letter 't'

A: 4
****
Q: Sentence: 'someone is pointing at part of a sandwich on a plate'. Find frequency of the letter 'a'

A:
6
****