instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'eight donuts are cooked together in oil in a metal tray'. Find frequency of the letter 'h'
answer:
2

question:
Sentence: 'a red fire hydrant opened and spilling water'. Find frequency of the letter 'd'
answer:
4

question:
Sentence: 'a women is holding a baby next to a dog, a patio table, and a pool'. Find frequency of the letter 'e'
answer:
3