TASK DEFINITION: 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.
PROBLEM: Sentence: 'a fire hydrant sits off a city street'. Remove all words of length '4' in the given sentence.

SOLUTION: a hydrant off a street

PROBLEM: Sentence: 'the bright lights of the city by a street at night'. Remove all words of length '2' in the given sentence.

SOLUTION: the bright lights the city a street night

PROBLEM: Sentence: 'a man is riding the waves on a surfboard'. Remove all words of length '1' in the given sentence.

SOLUTION:
man is riding the waves on surfboard