Question: Which artist is known for working with the band Monkey Bowl, Serj Tankian or Robert Ellis Orrall?
Sentence (from "Serj Tankian"): Serj Tankian (Western Armenian: Սերժ Թանկեան , ] ; born August 21, 1967) is a Lebanese-born Armenian-American singer-songwriter, composer, multi-instrumentalist, record producer, poet, and political activist with Armenian descent.
Relevant evidence: No