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: 'some people are sitting and playing wii in a family room'. Remove all words of length '3' in the given sentence.
some people sitting playing in a family room

Sentence: 'a giraffe comes close to a visitor in its enclosure'. Remove all words of length '1' in the given sentence.
giraffe comes close to visitor in its enclosure

Sentence: 'a pile of oranges sitting next to a pile of green apples'. Remove all words of length '6' in the given sentence.

a pile of oranges sitting next to a pile of green