# name alma mater birth date marriage date president tenure tenure
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name
alma mater
birth date
marriage date
president
tenure
tenure
number
number parsed year month day
number parsed year month day
number parsed year month day
number parsed year month day
number text text date date text date date
1 jiang qing shandong provincial experimental theatre 19 march 1914 20 november 1938 mao zedong 27 september 1954 27 april 1959
dong biwu served in 1975 . who was the previous president ?
NNP NNP VBD IN CD . WP VBD-AUX DT JJ NN .
Liu Shaoqi
select c6 from w where c7_parsed < ( select c7_parsed from w where c6 = 'dong biwu' ) order by c7_parsed desc limit 1