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: 'a kitchen with a sink and a dish rack'. How many words start with the letter 'a' in the sentence.
4

Sentence: 'a male skateboarder in a black shirt doing a trick'. How many words start with the letter 'a' in the sentence.
3

Sentence: 'a shopping car going down a sidewalk next to a street'. How many words start with the letter 'a' in the sentence.

3