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: 'there is a bird standing on a rocky shore'. How many words start with the letter 'a' in the sentence.
2

Sentence: 'the group of people are getting ready to ski down the mountainside'. How many words start with the letter 't' in the sentence.
3

Sentence: 'there are two skiers that are waiting at the train station'. How many words start with the letter 's' in the sentence.

2