sentences:  Chinese Communist Party groups were particularly involved in sowing dissent in Shanghai through the far-left Shanghai University.Shanghai's native Chinese were strongly unionised compared to other cities and better educated, and recognised their plight as involving lack of legal factory inspection, recourse for worker grievances or equal rights.Many Chinese families were also aggrieved by an upcoming Child Employment Bill, proposed by the Shanghai Municipal Council, that would have stopped children under the age of 12 from working in mills and factories (many working-class homes relied on wages brought in by children).