I can't seem to quite figure out how cards like Amanda Sharpe's Pass/Fail work where it states, "...put a Clue token on this Card" http://www.arkhamhorrorwiki.com/File%3APsAmandaSharpeFront.png Do these clue tokens become usable as a bank of clue tokens, such as when sealing a gate? Do you get to use them once the condition has passed or failed, and they are put into your normal clue token pool? Or are these simply markers, unusable and lost when passed/failed?

These clues are nothing but generic tokens used to indicate the progress of her personal story. They are taken from the bank, and they are absolutely not part of your supply (you can't spend them, unless either the pass or the fail condition of the card allows you to gain these clues)