question:
Widowed in 1861, the grief-stricken Queen withdrew from public life and left Buckingham Palace to live at Windsor Castle, Balmoral Castle and Osborne House.
When did Prince Albert die?

answer: yes

question:
It used a system of pulleys and wires to automatically calculate predicted tide levels for a set period at a particular location.
Who invented the first tide-predicting machine in 1872?

answer: no

question:
In 1413, following a series of tentative personal unions between the Grand Duchy of Lithuania and the Crown Kingdom of Poland, the existing Lithuanian nobility formally joined this class.:211
What is one leader from the polish-lithuanian common weaith.

answer: no

question:
To the west it bordered Finland, Norway and Poland; and to the south, China, Mongolia and North Korea whilst bordering the Arctic Ocean to the north, the Pacific Ocean to the east and the Black sea and Caspian Sea to the south.
Which ocean is along eastern Russia?

answer:
yes