Use "demonstrator" in a sentence

1. My new demonstrator wasn’t

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2. The Tea Party demonstrator whose placard read “Grandma’s Not Shovel Ready” gets the point exactly

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3. If the human element is to remain relevant it has to transcend beyond being a mere demonstrator of the emerging smart educational system to become a wisdom teacher of its culture's attractors

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4. There was Jessop, at the art school; Swain, who was chemistry demonstrator at the university; Newton, who was a teacher; besides Edgar and Miriam's younger brothers

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5. Hence the advent, apparently tardy, of the Tacituses and the Juvenals; it is in the hour for evidence, that the demonstrator makes his appearance

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