1.
the four elements: earth, water, fire, and wind
China
2.
the four freedoms: speaking out freely, airing views fully, holding great debates, and writing big-character posters, dàmíngdàfàng大鳴大放dàmíngdàfàng大鸣大放, dàbiànlùn大辯論dàbiànlùn大辩论, dàzìbào大字報dàzìbào大字报