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: 'hospital display of different bed setups and a nurses uniform'. How many words start with the letter 'd' in the sentence.
2

Sentence: 'two men on motorcycles and wearing helmets'. How many words start with the letter 'w' in the sentence.
1

Sentence: 'cowboys herding horses across a small stream in a valley'. How many words start with the letter 'a' in the sentence.

3