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 person on a surfboard in the water'. Remove all words of length '6' in the given sentence.

SOLUTION: a on a surfboard in the water

PROBLEM: Sentence: 'half a dozen donuts from krispy kreme of various different flavors'. Remove all words of length '2' in the given sentence.

SOLUTION: half a dozen donuts from krispy kreme various different flavors

PROBLEM: Sentence: 'a flock of birds is seen flying around a clock tower'. Remove all words of length '2' in the given sentence.

SOLUTION:
a flock birds seen flying around a clock tower