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 golfer hitting a golf ball at a hole on the green'. How many words start with the letter 'g' in the sentence.
3

Sentence: 'two giraffe stand near a tall metal fence'. How many words start with the letter 'n' in the sentence.

1