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.

Input: Consider Input: Sentence: 'there are people in chairs watching a projection screen'. How many words start with the letter 't' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a little boy sitting at a table with a spoon full of food'. How many words start with the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a tall giraffe standing in an arrid field'. How many words start with the letter 't' in the sentence.


Output: 1