With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: Alan Dershowitz wrote in his book "The Case for Israel" that unlike the Haganah, the policy of the Irgun had been to encourage the flight of local Arabs.
text_B: According to Alan Dershowitz, if a person did not want local Arabs to stay then they likely would have strongly supported the Irgun over the Haganah?
YES.