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: Mary Ball was born in 1812, the second daughter of Bob Stawell Ball and his wife Mary nee Green. 
 Question: Who was the male parent of Mary Ball?

SOLUTION: bob stawell ball

PROBLEM: Context: Ehlers-Danlos syndrome is a complex hereditary connective tissue disorder that is characterized by abnormalities of the skin and joints and visceral and neurological manifestations. At present, at least 11 forms are recognized on the basis of their clinical characteristics, methods of transmission, and biochemical defect. The neurologic manifestations include cerebrovascular disease, peripheral neuropathy, plexopathy, periventricular subependymal heterotopias, and epilepsy. Previously, 2 females were reported to be affected with subependimal periventricular heterotopias and Ehlers-Danlos syndrome type 1. The authors report a new case of a 12-year-old girl with similar clinical and neuroradiological features. 
 Question: What tissue is most affected in Ehlers-Danlos syndromes?

SOLUTION: connective tissue

PROBLEM: Context: Koo Ja-cheol (Hangul: ; born 27 February 1989) is a South Korean footballer who plays as midfielder for Bundesliga club FC Augsburg and the former captain of South Korean football team. 
 Question: In football, which position does Koo Ja-cheol play?

SOLUTION:
midfielder