Question: In between The Postal Service and Chagall Guevara which one was formed in 1989?
Sentence (from "Chagall Guevara"): Chagall Guevara was an American rock band formed in 1989 by solo artist Steve Taylor, guitarists Dave Perkins and Lynn Nichols (from the 1970s Phil Keaggy band), bassist Wade Jaynes, and drummer Mike Mead.
Relevant evidence: Yes