How to break a lock<br>Determine whether your padlock has a single-or double-lock shackle. In most cases, this will be impossible to determine by just looking at the padlock. Check its packaging, contact its manufacturers, or research it online to discover what kind of shackle it has.
Does this next sentence follow, given the preceding text?
what type of shackle the lock has can't be determined

 -- Yes; -- It's impossible to say; -- No;