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• 2 · Nature
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• 4 · Society, Civilization, Culture
• 47 · crafts and industries
• 47G · building activities
• 47G6 · tools and machines ~ building

47G6(...) · tools and machines ~ building (with NAME)

• 47G6(MORTISE CHISEL) · tools and machines ~ building: mortise chisel
• 47G6(PLUMB-LINE) · tools and machines ~ building: plumb-line
• 47G6(RAMMER) · tools and machines ~ building: rammer
• 47G6(WATER-LEVEL) · tools and machines ~ building: water-level