Question 19 (Algorithmic problem) Write a recursive function to count the number of words in a sentence. Multiple empty spaces can appear at any location in the sentence, see the first example below. You are NOT allowed to use: split for and while loops The function has the following definition: DELL def count_words (s): DET DET TI IR TT Alex ") >>> count_words (" Hi my name is 5 >>> count words ("Hi there!") 2 >>> count words ("I have 3 cats") 4 IT IT TT