Original sentence: A number of Papuans refused to accept the territory's integration into Indonesia, which anti-independence supporters and foreign observers attributed to the Netherlands' efforts to promote a West Papuan national identity among right-leaning Papuans and suppressed left-leaning Papuan pro-Indonesian sympathies
Edited sentence: A significant number of Papuans refused to accept the territory's integration into Indonesia, which anti-independence supporters attribute to the Netherlands' efforts to promote a West Papuan national identity