Associative memory bit cells are disclosed for selectively producing binary or ternary content-addressable memory lookup results. The engine is mounted by inclining a cylinder axis thereof forward, and the steering shaft is disposed on the front of a cylinder head of the engine. A water reservoir is also provided for medicated water to be applied to the tooth site. The rotating clutch and the brake share a common fixed connection. If the first polarity is negative, the cleaning member electrostatically removes toner particles having a positive polarity from the cleaning target. The trunk is configured at a physical level and a protocol level using at least one trunk option.