Unique Words program code:

def getUniqueWords(inputFilePath):
    uniqueWords = set()

    with open(inputFilePath, 'r') as file:
        # Read the contents of the file
        contents = file.read()

        # Split the contents into individual words
        words = contents.split()

        # Iterate through each word
        for word in words:
            # Remove any leading or trailing punctuation from the word
            word = word.strip(".,!?;:\"'()[]{}")

            # Add the word to the set of unique words
            uniqueWords.add(word)

    return uniqueWords


# Usage example
inputFilePath = "input.txt"  # Replace with the path to your text file
uniqueWords = getUniqueWords(inputFilePath)

# Display the unique words in the input file
print("Unique words in the input.txt file:")
for word in uniqueWords:
    print(word)

Input file "input.txt" data:

Hello
Python
Hello
Java
Hello
World
Hello
Jhon
Good Charless
Good Mohamad

Executed Output:

Unique words in the input.txt file:

World
Jhon
Charless
Good
Python
Mohamad
Java
Hello