instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a plastic tray that has different foods inside of it'. Find frequency of the letter 't'
answer:
6

question:
Sentence: 'a man paddle boarding by a boat dock in a city'. Find frequency of the letter 'o'
answer:
3

question:
Sentence: 'a desk with a laptop, computer, headphones and a book on it'. Find frequency of the letter 'e'
answer:
4