Помогите решить задачу

import re

text = "Some words contain the word cat: scat, ducati, alcatel, catalyst, worldcat and of course cat!"

patterns = [r"\bcat", r"cat\b", r"\bcat\b", r"\Bcat", r"cat\B", r"\Bcat\B"]

matches = [len(re.findall(pattern, text)) for pattern in patterns]

print(matches)