In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
--------
Question: Passover commences on the 15th of the Hebrew month of Nisan and lasts for either seven days (in Israel and for Reform Jews and other progressive Jews around the world who adhere to the Biblical commandment) or eight days for Orthodox, Hasidic, and most Conservative Jews (in the diaspora). In Judaism, a day commences at dusk and lasts until the following dusk, thus the first day of Passover begins after dusk of the 14th of Nisan and ends at dusk of the 15th day of the month of Nisan. The rituals unique to the Passover celebrations commence with the Passover Seder when the 15th of Nisan has begun. In the Northern Hemisphere Passover takes place in spring as the Torah prescribes it: 'in the month of (the) spring' (בחדש האביב Exodus 23: 15). It is one of the most widely celebrated Jewish holidays.

Answer: when is passover and how long is it


Question: Mitra began her career as a model. She came to prominence as the Lara Croft model between 1997 and 1998. After completing her stint as Lara Croft, she concentrated on acting and is known for her roles as Holly Marie Begins on the sixth season of Party of Five (1999 -- 2000); as Tara Wilson on the final season of The Practice (2003 -- 2004) and the first and second seasons of Boston Legal (2004 -- 2005); as Detective Kit McGraw on the third season of Nip / Tuck (2005); in the lead role of the science fiction / action film Doomsday as Major Eden Sinclair (2008); as Sonja in Underworld: Rise of the Lycans (2009); and as Major Rachel Dalton on the third and fourth seasons of Strike Back (2012 -- 2013); and as Dr. Rachel Scott in the first two seasons of The Last Ship (2014 -- 2015).

Answer: who played sonja in underworld rise of the lycans


Question: The novel charts the adventures of modern-day twelve-year-old Percy Jackson as he discovers he is a demigod, the son of a mortal woman and the Greek god Poseidon. Percy and his friends Annabeth Chase and Grover Underwood go on a quest to find Zeus' stolen lightning bolt and prevent a war between the gods Zeus, Poseidon, and Hades.

Answer:
what is the book percy jackson and the lightning thief about