Definition: 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.
Input: Article: In front of a popular restaurant, a line of customers wait for taxis. And wait. Most of the cabs(taxis) are full. That's nothing unusual in this city of 4 million people. But it's 2:30 in the morning. Visitors to the Olympic Games may leave disappointed if they see Athens only through the eyes of the typical tourist, who makes a beeline of the islands after the visit to the Acropolis  and the unusual and attractive Plaka district. To fully appreciate and discover Athens' many charms , do as the Greeks do: walk out into the neighborhoods, find the packed nightclubs, eat at one of the innumerable  restaurants, or see Hollywood stars under real stars in a romantic outdoor cinema. The Greek capital is named for the ancient goddess Athena, whose favourite animal was the owl . It's a fitting symbol for the city's nocturnal   nature, which often reaches its highest point in summer with a rush hour just before dawn. As native Athenian Panos Demestiha said, Athens by day is unlivable , but it's magical at night. Athenians face up to heavy traffic block, decreasing green space, dusty streets... City officials are using the momentum  of the August 13-29 Olympics to fix some of these problems and make city life more bearable. 
 Answer: there is no cab in the street at 2:30 am.
