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.

[EX Q]: Sentence: 'a man is sitting on his motorcycle outside'. How many words start with the letter 'o' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'young lady holding an umbrella while standing at a pond'. How many words start with the letter 'y' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a group of skiers are standing on a snowy incline'. How many words start with the letter 'i' in the sentence.
[EX A]:
1