Get the tokens from the original Doc that are also in the comparison Doc.

def overlap_tokens(doc, other_doc):
    """Get the tokens from the original Doc that are also in the comparison Doc.
    """
    overlap = []
    other_tokens = [token.text for token in other_doc]
    for token in doc:
        if token.text in other_tokens:
            overlap.append(token)
    return overlap