instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a large group of motorcycles parked along a street'. Find frequency of the letter 'a'
answer:
5


question:
Sentence: 'a dog on a couch near many pillows'. Find frequency of the letter 'p'
answer:
1


question:
Sentence: 'a toddler playing near the toilet in a bathroom'. Find frequency of the letter 'e'
answer:

4