In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Let me give you an example: Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world.
Answer: 10,000,000 or less.
The answer to this example can be: How many books are there in the British Library?
Here is why: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

OK. solve this:
Article: As the forceful king of Macedonia , Alexander the Great overthrew the Persian Empire, becoming a hero that would survive centuries after his death. Born in 356 B.C., Alexander III was the son of Philip II and Olympias. Alexander's parents wanted him to receive the finest education, and arranged for him to study under Aristotle, regarded as one of the greatest scholars. Alexander's father was a strong leader. Philip II built an impressive army and established the Macedonian kingdom; he was even planning to attack Persia shortly before his death. In 336, Philip was murdered by one of his guards. Although it was obvious that the guard had a personal hatred, there are clues that other people were related to it. After Alexander was cleared as a suspect, he succeeded his father without opposition, and killed those said to be responsible for his father's murder, as well as all rivals. He was then just 20 years old. He then prepared to attack Persia. In the spring of 334, Alexander led the army made up of nearly 50,000 soldiers into Asia, which is called "the most powerful military expedition ever to leave Greece", He soundly defeated the Persian army at the Granicus River, sending a strong message to Darius III, leader of the Persian Empire. In 333, Alexander faced Darius at Issus, a mountain pass. The Macedonian army was greatly outnumbered but able to work the narrow mountain passageway to their advantage. Darius managed to escape. Continuing down the Mediterranean Coast, Alexander took every city in his path. In 332 Alexander declared Egypt to be part of the Greek Empire and was crowned Pharaoh . When Alexander left Egypt in 331, he defeated the Persians again and was crowned leader of Asia. In 323, however, Alexander developed a fever on the way back home and died 10 days later at Babylon. He was just 33 years old.
Answer: The murder might be organized by a group of people.
Answer:
What can we know about Philip's death?