import re


def remove_punctuations(sentence: str) -> str:
    """
    Takes a sentence and removes punctuations from it
    """
    pat2 = re.compile('[^a-zA-Z0-9 ]+')
    pat1 = re.compile('[\s]+')

    doc = pat2.sub(' ', sentence)
    doc = pat1.sub(' ', doc)
    doc = doc.strip()
    return doc