question: OPTIONS:
- yes
- no
The Republic of the Congo (French: Republique du Congo), also known as Congo, Congo Republic, West Congo[citation needed], or Congo-Brazzaville, is a country located in Central Africa.
Which country lies on Congo's northwest border?

answer: no

question: OPTIONS:
- yes
- no
The gable is usually richly decorated with arcading or sculpture or, in the case of Italy, may be decorated with the rest of the facade, with polychrome marble and mosaic, as at Orvieto Cathedral.
Which Italian cathedral displays polychrome marble and mosaic on the gable?

answer: yes

question: OPTIONS:
- yes
- no
In the biological communities surrounding hydrothermal vents and cold seeps, bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy.
How does bacteria help to sustain life in hydrothermal vents and cold seeps?

answer: yes

question: OPTIONS:
- yes
- no
During this period winter sports were slowly introduced: in 1882 the first figure skating championship was held in St. Moritz, and downhill skiing became a popular sport with English visitors early in the 20th century, as the first ski-lift was installed in 1908 above Grindelwald.
When was the first figure skating championship held?

answer:
yes