Dictionary Challenge

In this lab you will process a paragraph of text using Python dictionaries to extract useful statistics and structure.

Tasks

1. Word Frequency Count

Count how many times each word appears in the paragraph. Normalize words to lowercase and strip punctuation before counting.

2. Most Common Word

Find the word that appears most frequently. If there is a tie, return the one that comes first alphabetically.

3. Group Words by First Letter

Build a dict mapping each starting letter to a sorted list of unique words beginning with that letter.

Output Format

Your program must print exactly:

Tips

• Use str.lower() and str.strip('.,!?;:\"\'') to normalise each word
• A dict comprehension or loop with .get() works well for counting
• sorted() on a dict's items lets you print in alphabetical order
• For grouping, initialise with setdefault(letter, []) or check membership first