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