Pen Writing, Ink Dipping:
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Chalk writing on the blackboard
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Ballpoint pen
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Put the cap on the marker
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Putting on the ballpoint pen
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Throw a pencil
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Pencil writing on paper
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Scissors cutting paper
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Click on the calculator buttons
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Write, Ballpoint pen machine, press a button
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Seal, closes, pad opens
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Remove eraser by hand
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Electric pencil sharpener
★★★★★