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.

[Q]: Sentence: 'a group gathering in which several people are holding frisbees'. How many words start with the letter 'g' in the sentence.
[A]: 2


[Q]: Sentence: 'a vase filled with white flowers sitting on top of a wooden table'. How many words start with the letter 't' in the sentence.
[A]: 2


[Q]: Sentence: 'an orange cat sitting on a window sill'. How many words start with the letter 's' in the sentence.
[A]:
2