TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : The King's Commissioner of North Holland is Johan Remkes. 
Question : Which person was the head of government of North Holland?

SOLUTION: Johan Remkes

PROBLEM: Context : Saint Ambrose barring Theodosius from Milan Cathedral is a 1619--1620 painting by Anthony van Dyck, now in the National Gallery in London. 
Question : What is the name of the place where Saint Ambrose barring Theodosius from Milan Cathedral can be found?

SOLUTION: National Gallery

PROBLEM: Context : Iron Dome was declared operational and initially deployed on 27 March 2011 near Beersheba. 
Question : In what year did Iron Dome enter service?

SOLUTION:
2011