Memorial Day or Decoration Day is a federal holiday in the United States for remembering the people who died while serving in the country's armed forces. The holiday, which is currently observed every year on the last Monday of May, was held on May 28, 2018. The holiday was held on May 30 from 1868 to 1970. It marks the unofficial start of the summer vacation season, while Labor Day marks its end.

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does memorial day always fall on the last monday of may?

A: yes

Bowling Green is a station on the IRT Lexington Avenue Line of the New York City Subway, located at Broadway and Battery Place (at the Bowling Green), in the Financial District of Manhattan. It is served by the 4 train at all times and the 5 train at all times except late nights.

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does the 4 train stop at bowling green?

A: yes

Calcium carbide is a chemical compound with the chemical formula of CaC. Its main use industrially is in the production of acetylene and calcium cyanamide.

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calcium carbide cac2 is the raw material for the production of acetylene?

A: yes

A blue rose is a flower of the genus Rosa (family Rosaceae) that presents blue-to-violet pigmentation instead of the more common red, white, or yellow. Blue roses are often portrayed in literature and art as symbols of love, prosperity, or immortality. However, because of genetic limitations, they do not exist in nature. In 2004 researchers used genetic modification to create roses that contain the blue pigment delphinidin.

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is there such a thing as a blue rose?

A:
yes