Problem: Yissachar Dov Rokeach (born 19 January 1948) is the fifth and present Rebbe of the Hasidic dynasty of Belz. He is the son of Rabbi Mordechai of Bilgoray (1902 1949), the grandson of the third Belzer Rebbe, Rabbi Yissachar Dov Rokeach, and the nephew of the fourth Belzer Rebbe, Rabbi Aharon Rokeach, who raised him. He has led Belz since 1966.

Based on the paragraph above can we conclude that "There were four Rebbe of the Hasidic dynatsy of Belz before Yissachar Dov Rokeach."?

A: Yes

Problem: The 711 Squadron ""Albatrozes"" ("Esquadra 711") was a flying squadron of the Portuguese Air Force. Its primary mission was Search and Rescue and it has had secondary missions tactical air transport and general air transport in the Azores archipelago. During the time it was active it was the only operational squadron in the Portuguese military to operate both rotary- and fixed-wing aircraft.

Based on the paragraph above can we conclude that "When Esquadra 711 was active, the Portuguese military did not have two operational squadrons that both operated rotary- and fixed-wing aircraft."?

A: Yes

Problem: Ruth Gentry (February 22, 1862 October 18, 1917) was a pioneering American woman mathematician during the late 19th century and the beginning of the 20th century. She was the first native-born Indiana woman to acquire a PhD degree in mathematics, and most likely the first woman born in Indiana to receive a doctoral degree in any scientific discipline.

Based on the paragraph above can we conclude that "Ruth died on the Summer. "?

A:
No