instruction:
In this task, you need to count the number of words in a sentence that start with the given letter. Answer with numbers and not words.
question:
Sentence: 'a zeppelin flying in the air as a water spouts occurs in a city lake'. How many words start with the letter 'a' in the sentence.
answer:
5


question:
Sentence: 'a lady has just about finished her plate with a knife'. How many words start with the letter 'a' in the sentence.
answer:
3


question:
Sentence: 'a lady is playing tennis game in a tennis court'. How many words start with the letter 'p' in the sentence.
answer:

1