instruction:
Generate a correct and concise answer for the question based on the words in the context.
question:
Context : The Roviana rail (Gallirallus rovianae) is a species of bird in the family Rallidae. 
Question : Is the taxon rank of Roviana rail species or genus?
answer:
species


question:
Context : Nicholas Rodda (born 11 October 1992) is a male former water polo player from South Africa. 
Question : Is Nicholas Rodda a male or female?
answer:
male


question:
Context : The Letters Patent, 1947 (more formally, the Letters Patent Constituting the Office of Governor General and Commander-in-Chief of Canada) are a legal instrument introduced by King George VI, which came into effect on 1 October 1947 and continue to, along with parts of the Constitution Act, 1867, constitute the Office of the Governor General. 
Question : The point in time of Letters Patent, 1947 was when?
answer:

1 October 1947