instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'two giraffes, one standing and one laying down'. Find frequency of the letter 'g'
answer:
3


question:
Sentence: 'a bird is perched on a container in a person's hand'. Find frequency of the letter 'c'
answer:
2


question:
Sentence: 'a woman is preparing to hit a tennis ball during a match'. Find frequency of the letter 'm'
answer:

2