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 train station with a train sitting there waiting to be loaded'. How many words start with the letter 't' in the sentence.
[A]: 4


[Q]: Sentence: 'a car sitting on a train carriage on the tracks'. How many words start with the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'a woman sitting on a chair while holding a cell phone'. How many words start with the letter 'w' in the sentence.
[A]:
2