Question: What was the population of the islands that Eyðgunn Samuelsen teaches about in April 2017?
Sentence (from "2017 Liga 1"): The 2017 Liga 1 (also known as the GO-JEK Liga 1 for sponsorship reasons) season is the 60th season of top-flight football in Indonesia (under Football Association of Indonesia or PSSI), and the inaugural season of "Liga 1", replacing "Indonesia Super League".
Relevant evidence: No