NameError: name 'text' is not defined in Python basic print (trump_tweet(text))

def trump_tweet(text) :
    # Implement the Trump_twit() function according to the given rule.
    # Please erase the pass and write the code.
    words = text.split()

    Hashtag, Mention, Others = [],[],[]
    for word in words:
        if word.startswith('#'):
            plain_word=word[1:]
            Hashtag.append(plain_word)
        elif word.startswith('@'):
            plain_word=word[1:]
            Mention.append(plain_word)
        else :
            Others.append(word)
    return Hashtag, Mention, Others

print(trump_tweet(text))



# Don't modify the bottom part!
# Code that performs input and output.
t = input()
trump_tweet(t)

instructions
The Trump_tweet function divides text into nnn strings based on spaces. Categorize each divided string according to the rules below.

When each string starts with '#', it is classified as 'Hashtag' and stored in the list.
When each string starts with '@', it is classified as 'Mention' and stored in the list.
Otherwise, it is grouped separately and stored in the list.
Use the print function so that the list of each classified is printed as shown in the format specified below.

Traceback (most recent call last):
  File "main.py", line 18, in <module>
    print(trump_tweet(text))
NameError: name 'text' is not defined