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: 'two small children ski down a snowy tree lined slope'. Remove all words of length '4' in the given sentence.
two small children ski a snowy lined slope

Sentence: 'a small child on a skate board out doors'. Remove all words of length '5' in the given sentence.
a on a out

Sentence: 'a steak sandwich with a cup of green sauce on a white plate'. Remove all words of length '3' in the given sentence.

a steak sandwich with a of green sauce on a white plate