The Ohio Valley Siouan, or Southeastern Siouan, languages are a subfamily of the Western Siouan languages, far to the east and south of the Mississippi River. The group has Ofo and Biloxi, in the Lower Mississippi River valley, and Tutelo, historically spoken in Virginia, near the territory of the Catawban languages. All of the languages are now extinct.
The Ohio Valley Siouan languages currently do not have any speakers.
A: Yes

John Wellborn Root (January 10, 1850 January 15, 1891) was an American architect who was based in Chicago with Daniel Burnham. He was one of the founders of the Chicago School style. Two of his buildings have been designated a National Historic Landmark; others have been designated Chicago landmarks and listed on the National Register of Historic Places. In 1958, he received the AIA Gold Medal.
John Wellborn Root worked for Daniel Burnham for his whole career.
A: It's impossible to say

Euphorbia pubentissima, known by the common names false flowering spurge and southeastern flowering spurge, is a species of plant in the spurge family. It is native to the Southeastern United States where it is found in areas of sandy, open woodlands.
Euphorbia pubentissima is also known as southeastern flowering spurge
A:
Yes