Question: What is the name of the American pornographic actress born in 1958 that, along with two other actresses, was among the first African-American women to "cross over" into mainstream porn video?
Sentence (from "Thyrsa Frazier Svager"): Thyrsa Anne Frazier Svager (June 16, 1930 – July 23, 1999) was an American academic who was one of the first African-American women to gain a PhD in mathematics.
Relevant evidence: No