c2,label
Science_and_technology,1
Engineering,2
Industry,3
Language,4
Government,5
Education,6
Nature,7
Mass_media,8
People,9
Military,10
Energy,11
Knowledge,12
Life,13
Organizations,14
History,15
Concepts,16
Philosophy,17
Food_and_drink,18
Humanities,19
World,20
Geography,21
Law,22
Business,23
Events,24
Entertainment,25
Culture,26
Religion,27
Ethics,28
Sports,29
Music,30
Academic_disciplines,31
Politics,32
Economy,33
Society,34
Mathematics,35
Policy,36
Health,37