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| SECTION A – HUMAN NECESSITIES |
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| SECTION B – PERFORMING OPERATIONS; TRANSPORTING |
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| SECTION C – CHEMISTRY; METALLURGY |
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| SECTION D – TEXTILES; PAPER |
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| SECTION E – FIXED CONSTRUCTIONS |
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| SECTION F – MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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| SECTION G – PHYSICS |
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| SECTION H – ELECTRICITY |
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