<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def is_quote_artifact(orig_text, span):
 """Distinguish between quotes and units."""

    res = False
    cursor = re.finditer(r'("|\')[^ .,:;?!()*+-].*?("|\')', orig_text)

    for item in cursor:
        if item.span()[1] == span[1]:
            res = True

    return res