instruction:
In this task, you need to count the number of times the given letter appears in the given sentence.
question:
Sentence: 'a red building with a crowd of people outside it near the water'. Find frequency of the letter 'e'
answer:
7


question:
Sentence: 'a pizza pie sitting on a wooden table with tongs'. Find frequency of the letter 't'
answer:
5


question:
Sentence: 'people are lined up and waiting for baggage'. Find frequency of the letter 'o'
answer:

2