TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : Nohra Puyana Bickenbach (born 29 May 1955) is the wife of the 30th President of Colombia, Andrés Pastrana Arango, and served as First Lady of Colombia from 1998 to 2002. 
Question : What is Nohra Puyana Bickenbach's spouse's name?

SOLUTION: Andrés Pastrana Arango

PROBLEM: Context : The Maschinengewehr 08 (or MG 08)--so-named after 1908, its year of adoption--was a development of the license made Maschinengewehr 01. 
Question : What year was MG 08 commissioned?

SOLUTION: 1908

PROBLEM: Context : South African Airways Flight 228 was a scheduled flight of the Boeing 707-300C Pretoria, registration ZS-EUW, on 20 April 1968 from Johannesburg to Heathrow via Windhoek, Luanda, Las Palmas and Frankfurt. 
Question : What was the date of South African Airways Flight 228?

SOLUTION:
20 April 1968