Teacher:In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
Teacher: Now, understand the problem? Solve this instance: Article: BEIJTNG, July 21 (Xinhua) -- An armed police officer who died in the riot in Urumqi, capital of Xinjiang Uygur Autonomous Region, has been honored as a "loyal guard devoted to his mission ", one of the highest-level honors in the Chinese army. Premier Wen Jiabao and Central Military Commission (CMC) Chairman Hu Jintao signed the order to honor Wan Jingang, a 31 -year-old officer in the Xinjiang Armed Police recently. Wan was awarded the honorary title of "loyal guard devoted to his mission" for his bravery and loyalty in carrying out his mission and task, according to the order. Wan and his men were patrolling the streets when a group of rioters started to attack passengers on a bus in Urumqi on July 5. He was surrounded and attacked by rioters while helping passengers escape. He later died of serious injuries. The State Council and the CMC also called on the army and police officers to learn from Wan's loyalty in carrying out his mission, bravery and fighting spirit and strong sense of responsibility in safeguarding national unity and social stability. The State Council and the CMC also called on the army and police to follow Wan's example and firmly fight against the criminal activities of lawbreakers to safeguard social stability , socialist legal system and the interests of the people. The July 5 riot in Urumqi left 197 people dead and more than 1, 600 injured. The homes of 633 families were damaged and 627 vehicles were destroyed.
Answer: he was the only Armed Police officer who was killed in the riot
Student:
The reason why Wan Jingang was given such a high honor is that _ .