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Subjects
Agriculture
[remove]
32
Social issues
6
Economic issues
4
International affairs
2
Advertising
1
Animal and plant protection reconnaissance
1
Civil defense
1
Debates/Conferences
1
Decontamination of food
1
Decontamination of land
1
Farm life
1
Industry/Manufacturing
1
Legal issues
1
Political tale
1
Politics
1
Signal flag
1