TASK DEFINITION: Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
PROBLEM: Context: Today, nearly 400 animals are listed as threatened or endangered animals in the United States. Many are at risk of becoming extinct or disappearing permanently. Unless efforts to save these vulnerable animals succeed, many of the country's greatest creatures will be lost forever. From the facts listed, guess which animals are endangered. Click on the picture to find out more about each of these animals in trouble. American Crocodile *American crocodiles are about 12 feet long. They live on land and in shallow water, swamps and marshes. *American crocodiles like to float in the water with only their eyes and noses above the water surface. *American crocodiles eat mostly small animals, which they grab with their strong jaws and sharp teeth. *American crocodiles lay eggs. They hide their eggs under twigs and leaves, or bury them in the sand. *Some crocodiles help their young hatch, and then carry them to the water in their mouth. Habitat Southern Florida, Mexico, Central and South American, Caribbean islands. Why It's Endangered Overhunted for its skin and habitat destruction. Peninsular Bighorn Sheep *Bighorn sheep can weigh as much as 280 pounds and stand about 3 feet tall. *They live in dry, desert mountain ranges, near rocky cliffs. *Bighorn sheep eat grass, twigs and leaves. *Male sheep are called rams and can be recognized by their huge, brown horns. The horns curl back over the ears, down,and up past the cheeks. *They live in herds or groups. The male sheep with the biggest horns are usually in charge. Male horns can weigh as much as 30 pounds. *Males will use their massive horns to fight. The fights can last as long as 24 hours. *Females are called ewes. They are smaller than rams and have shorter, smaller horns. Habitat Nevada and California to west Texas and south into Mexico. Why It's Endangered Loss of habitat, hunting illegally, drought and disease. 
 Question: Where can we find both American crocodiles and Bighorn sheep according to the passage?

SOLUTION: mexico.

PROBLEM: Context: Konstantinos Raktivan (Greek: ; 1865 -- 21 May 1935) was a Greek jurist and politician, who served as cabinet minister, as the de facto first Governor-General of Macedonia, president of the Athens Bar Association and of the Council of State, Speaker of the Hellenic Parliament and member and president of the Academy of Athens. 
 Question: Who led Konstantinos Raktivan?

SOLUTION: academy of athens

PROBLEM: Context: The Lithuanian Civil War of 1432-1438 was a conflict over the succession to the throne of the Grand Duchy of Lithuania, after Vytautas the Great died in 1430 without leaving an heir. The war was fought on the one side by Svitrigaila, allied with the Teutonic Knights, and on the other by Sigismund Kestutaitis, backed by the Kingdom of Poland. The war threatened to sever the Union of Krewo, the personal union between Poland and Lithuania. Svitrigaila's alliance with the Grand Master of the Teutonic Order, Paul von Rusdorf, launched the Polish-Teutonic War but failed to secure victory for Svitrigaila. When Sigismund captured power in Lithuania by staging a coup in 1432, Lithuania split into two opposing camps, and there began three years of devastating hostilities. To prevent the Knights from continuing their support of Svitrigaila, Poland backed a Hussite invasion of Prussia in 1433. The war ended in a decisive defeat for Svitrigaila and his ally, the Livonian branch of the Teutonic Knights, at the Battle of Pabaiskas in September 1435. Svitrigaila eventually surrendered in 1437; Sigismund Kestutaitis ruled Lithuania for only eight years before he was assassinated in 1440. 
 Question: How many years did Sigismund rule, after his coup in 1432?

SOLUTION:
only eight years