如何检查字符串是否为带有R的维基百科文章的标题？

import re

def check_wikipedia_title(string):
    pattern = r'^.*\bR\b.*$'
    match = re.search(pattern, string)
    if match:
        return True
    else:
        return False

title1 = "R Programming Language"
title2 = "Python Programming Language"
title3 = "Machine Learning with R"
title4 = "Data Analysis using Python"

print(check_wikipedia_title(title1))  # True
print(check_wikipedia_title(title2))  # False
print(check_wikipedia_title(title3))  # True
print(check_wikipedia_title(title4))  # False