How do I turn on the hulking machine?


Hint 1 of 8:
There are strange markings in this room and the room outside in the
hallway that will help you with the machine.

Hint 2 of 8:
They show where to put levers into the machine to control it.

Hint 3 of 8:
Oh, you'll need levers, won't you?  One is in the same room as Sophia,
and you might have left the other behind when you saved Sophia.

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