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 girl in white blouse and black skirt holds a red tie up'. Remove all words of length '4' in the given sentence.
a in white blouse and black skirt holds a red tie up

Sentence: 'a train stopped on the track at a station'. Remove all words of length '2' in the given sentence.
a train stopped the track a station

Sentence: 'a man flying a kite with a girls face printed on'. Remove all words of length '3' in the given sentence.

a flying a kite with a girls face printed on