code: def same_table(c):
      
      return all(
          _to_span(c[i]).sentence.is_tabular()
          and _to_span(c[i]).sentence.table == _to_span(c[0]).sentence.table
          for i in range(len(c))
      )
docs: Return True if all Mentions in the given candidate are from the same Table.
  
      :param c: The candidate whose Mentions are being compared
      :rtype: boolean