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 bunch of ties that are on a metal rack'. How many words start with the letter 't' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'this photo shows four copies of the same fire hydrant'. How many words start with the letter 't' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a white and black cat standing on the sink in a bathroom'. How many words start with the letter 's' in the sentence.
[EX A]:
2