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.

Sentence: 'on one plate there is glazed donut and on the other plate there is mug of hot chocolate with a leaf shape swirled in it'. How many words start with the letter 's' in the sentence.
2

Sentence: 'a green fire hydrant is in the middle of an open dirt hole in a construction area'. How many words start with the letter 'a' in the sentence.
4

Sentence: 'polar bear standing in front of a rock formation'. How many words start with the letter 'a' in the sentence.

1