Why removing question and answers less than 2

[kiruthihan10]

thanks for the code
Though i couldn't understand the purpose of removing questions and answers less than 2 words.
Please explain
`# Remove questions and answers that are shorter than 2 words and longer than 20 words.
min_line_length = 2
max_line_length = 20

Filter out the questions that are too short/long

short_questions_temp = []
short_answers_temp = []

i = 0
for question in clean_questions:
if len(question.split()) >= min_line_length and len(question.split()) <= max_line_length:
short_questions_temp.append(question)
short_answers_temp.append(clean_answers[i])
i += 1

Filter out the answers that are too short/long

short_questions = []
short_answers = []

i = 0
for answer in short_answers_temp:
if len(answer.split()) >= min_line_length and len(answer.split()) <= max_line_length:
short_answers.append(answer)
short_questions.append(short_questions_temp[i])
i += 1`