Sent_en: 2zh The demonstrators were protesting against the Okhta Center, a proposed supertall 77-story skyscraper for the gas company Gazprom measuring 400 metres (1,300 feet).
Sent_yy: 示威者抗议奥赫塔中心，也就是高兹普罗姆天然气公司计划建造的77层超高层摩天大楼，总长400米（1300英尺）。