original question: Which role does [Roe v. Wade] play in the case?
answer: defendant, plaintiff
answer type: Litigation role.
auxiliary information: Roe v. Wade, 410 U.S. 113, is a landmark decision by the United States Supreme Court on the issue of abortion. Decided simultaneously with a companion case, Doe v. Bolton, the Court ruled 7‚Äì2 that a right to privacy under the due process clause of the 14th Amendment extended to a woman's decision to have an abortion, but that this right must be balanced against the state's two legitimate interests in regulating abortions: protecting women's health and protecting the potentiality of human life. Arguing that these state interests became stronger over the course of a pregnancy, the Court resolved this balancing test by tying state regulation of abortion to the third trimester of pregnancy. The Court later in Planned Parenthood of Southeastern Pennsylvania v. Casey rejected Roe‚Äç '‚Äãs trimester framework, while affirming Roe‚Äç '‚Äãs central holding that a person has a right to abortion until viability. The Roe decision defined "viable" as being "potentially able to live outside the mother's womb, albeit with artificial aid," adding that viability "is usually placed at about seven months but may occur earlier, even at 24 weeks."
Can you explain the role of [Roe v. Wade] in this particular case?