Original: During the period of December 5–11, 1974, the student demonstrators also built a temporary mausoleum for U Thant on the grounds of the RUSU and gave anti-government speeches.
Simplified: During the period of December 5 through December 11 1974, the student demonstrators also built a temporary mausoleum for U Thant on the grounds of the RUSU and gave anti-government speeches.