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: 'two couples sit on a bench in front of bushes with pink flowers'. How many words start with the letter 'o' in the sentence.
answer:
2


question:
Sentence: 'an electric train stands on the train tracks'. How many words start with the letter 't' in the sentence.
answer:
4


question:
Sentence: 'airport attendants move towards a large airplane on a runway'. How many words start with the letter 'a' in the sentence.
answer:

5