Input: Article: Śuddhodana was determined to see his son become a king, so he prevented him from leaving the palace grounds. But at age 29, despite his father's efforts, Gautama ventured beyond the palace several times. In a series of encounters—known in Buddhist literature as the four sights—he learned of the suffering of ordinary people, encountering an old man, a sick man, a corpse and, finally, an ascetic holy man, apparently content and at peace with the world. These experiences prompted Gautama to abandon royal life and take up a spiritual quest.

Now answer this question: How many "sights" did Gautama have that are well known?

Output: four

Input: Article: 
 Russia: On April 5 the Olympic torch arrived at Saint Petersburg, Russia. The length of the torch relay route in the city was 20 km, with the start at the Victory Square and finish at the Palace Square. Mixed martial arts icon and former PRIDE Heavyweight Champion Fedor Emelianenko was one the torch bearers. This gives him the distinction of the being the first active MMA fighter to carry the Olympic flame.

Now answer this question: What city location did the torch relay begin in Russia?

Output: Victory Square

Input: Article: London's buildings are too diverse to be characterised by any particular architectural style, partly because of their varying ages. Many grand houses and public buildings, such as the National Gallery, are constructed from Portland stone. Some areas of the city, particularly those just west of the centre, are characterised by white stucco or whitewashed buildings. Few structures in central London pre-date the Great Fire of 1666, these being a few trace Roman remains, the Tower of London and a few scattered Tudor survivors in the City. Further out is, for example, the Tudor period Hampton Court Palace, England's oldest surviving Tudor palace, built by Cardinal Thomas Wolsey c.1515.

Now answer this question: Of what material is London's National Gallery made?

Output:
Portland stone