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 group of children standing next to a soldier'. Remove all words of length '2' in the given sentence.
a group children standing next a soldier

Sentence: 'the black and white zebras congregate as a pack in the field'. Remove all words of length '4' in the given sentence.
the black and white zebras congregate as a in the field

Sentence: 'a group of people lined up in two rows for a photo wearing tennis clothing and the front row holding tennis rackets'. Remove all words of length '3' in the given sentence.

a group of people lined up in rows a photo wearing tennis clothing front holding tennis rackets