Q: You are given a paragraph, with numbered sentences, and a question. Write the numbers of the sentences needed to answer the given question. Separate multiple sentence numbers with a comma (", "). E.g. "1, 2" would be the correct response if Sent 1 and Sent 2 are needed to answer the given question (do not include sentences that contain no information that is necessary to answer the question). Sort the sentence numbers in an increasing order (i.e., '1, 2', instead of '2, 1'). Your answer should not contain anything than the sentence numbers separated by a comma (e.g. '1, 2, 3, 4'). The given question requires more than one sentence to answer. So, your answer must contain at least one comma (", ").
Paragraph- Sent 1: In spring 333 BC, Alexander crossed the Taurus into Cilicia.
Sent 2: After a long pause due to illness, he marched on towards Syria.
Sent 3: Though outmanoeuvered by Darius' significantly larger army, he marched back to Cilicia, where he defeated Darius at Issos.
Sent 4: Darius fled the battle, causing his army to collapse, and left behind his wife, his two daughters, his mother Sisygambis, and a fabulous treasure.
Sent 5: He offered a peace treaty that included the lands he had already lost, and a ransom of 10,000 talents for his family.
Sent 6: Alexander replied that since he was now king of Asia, it was he alone who decided territorial divisions.
Sent 7: Alexander proceeded to take possession of Syria, and most of the coast of the Levant.
Sent 8: In the following year, 332 BC, he was forced to attack Tyre, which he captured after a long and difficult siege.
Sent 9: Alexander massacred the men of military age and sold the women and children into slavery. 
Question: What happened to the people of Tyre?.
A:
8, 9.