In this task, you need to remove all words of a given length in the sentence. The number of letters in a word determine its length, for example, the length of the word "apple" is 5.

Sentence: 'a couple of young ladies enjoy playing nintendo wii together'. Remove all words of length '5' in the given sentence.
a couple of ladies playing nintendo wii together

Sentence: 'a dog jumping in the air with a frisbee in its mouth'. Remove all words of length '7' in the given sentence.
a dog in the air with a in its mouth

Sentence: 'a couple of people playing a nintendo wii game'. Remove all words of length '4' in the given sentence.

a couple of people playing a nintendo wii