(count("second", removed_lines) + count("2nd", removed_lines) > count("second", added_lines) + count("2nd", added_lines))
& (count("first", added_lines) + count("1st", added_lines) > count("first", removed_lines) + count("1st", removed_lines))
& !("autoconfirmed" in user_groups)
& edit_delta < 50
& lcase(added_lines) rlike "floor"