instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'baseball player reaching back as he's about to throw the ball'. Find frequency of the letter 'e'
answer:
5


question:
Sentence: 'two elephants walking on cement next to wall'. Find frequency of the letter 'n'
answer:
5


question:
Sentence: 'view of a lamp and a closet from a bed in a bedroom'. Find frequency of the letter 'f'
answer:

2