During the period of December NUMBER@1 -- NUMBER@2 , NUMBER@3 , the student demonstrators also built a temporary mausoleum for U Thant on the grounds of the ORGANIZATION@1 and gave anti-government speeches .

During the period of December NUMBER@1 through December NUMBER@2 NUMBER@3 , the student demonstrators also built a temporary mausoleum for U Thant on the grounds of the ORGANIZATION@1 and gave anti-government speeches .
