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 man touching a bird on top of a cage'. How many words start with the letter 'a' in the sentence.
answer:
3


question:
Sentence: 'a man riding on top of a wave on a surfboard'. How many words start with the letter 'o' in the sentence.
answer:
3


question:
Sentence: 'a monkey up in a tree holding oone banana from a bunch'. How many words start with the letter 'a' in the sentence.
answer:

3