input: Foreign key

A table may have multiple foreign keys, and each foreign key can have a different parent table. Each foreign key is enforced independently by the database system. Therefore, cascading relationships between tables can be established using foreign keys.

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can i have two foreign keys in one table
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output: yes
Question: Deep ocean water (DOW) is the name for cold, salty water found deep below the surface of Earth's oceans. Ocean water differs in temperature and salinity. Warm surface water is generally saltier than the cooler deep or polar waters; in polar regions, the upper layers of ocean water are cold and fresh. Deep ocean water makes up about 90% of the volume of the oceans. Deep ocean water has a very uniform temperature, around 0-3 C, and a salinity of about 3.5% or as oceanographers state as 35 ppt (parts per thousand). is the bottom of the ocean saltier than the top

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Answer: no
IN: On May 10, 2017, The CW renewed the series for a fifth season. On July 20, 2017, it was announced by series creator Julie Plec ahead of Comic Con that the series' fifth season would be its last. The final season debuted on April 18, 2018.
is there a season 7 of the originals?

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OUT: no
What's the best answer to this question: is it the same year in every country?

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Answer: no
Text: The world's tallest artificial structure is the 829.8-metre-tall (2,722 ft) Burj Khalifa in Dubai (of the United Arab Emirates). The building gained the official title of ''Tallest Building in the World'' and the tallest self-supported structure at its opening on January 9, 2010. The second-tallest self-supporting structure and the tallest tower is the Tokyo Skytree. The tallest guyed structure is the KVLY-TV mast. Breetsky was the third building, which was surpassed by Tokyo in 1987.

Question: is the eiffel tower the tallest building in the world?

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[separator]
Answer: no
Text: In baseball statistics, on-base percentage (OBP; sometimes referred to as on-base average/OBA, as the statistic is rarely presented as a true percentage) is a statistic generally measuring how frequently a batter reaches base. Specifically, it records the ratio of the batter's times-on-base (TOB) (the sum of hits, walks, and times hit by pitch) to their number of plate appearances. It first became an official MLB statistic in 1984.

Question: does hit by pitch count towards on base percentage?

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[separator]
Answer:
yes