instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a woman in a tank top reaches out for a frisbee'. Find frequency of the letter 'a'
answer:
6

question:
Sentence: 'two men in black wet suits beside a white surfboard'. Find frequency of the letter 'e'
answer:
5

question:
Sentence: 'black-faced sheep stand together in a pen lined with wood shaving'. Find frequency of the letter 'a'
answer:
5