instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a toasted sub sandwich is next to a salad'. Find frequency of the letter 'a'
answer:
6

question:
Sentence: 'a woman sitting in front of a giant slice of cheese pizza'. Find frequency of the letter 'e'
answer:
4

question:
Sentence: 'a fluffy white car looking in a mirror'. Find frequency of the letter 'k'
answer:
1