Problem: Does "The United States incidences of rubella, congenital rubella syndrome, measles, and mumps all fell by >95% in the immediate aftermath of widespread vaccination." answer the question "Who helped refine the measles vaccine?" OPTIONS:
- yes
- no

A: no

Problem: Does "Equerry Frederick Ponsonby (the son of Sir Henry) discovered that the Munshi had lied about his parentage, and reported to Lord Elgin, Viceroy of India, "the Munshi occupies very much the same position as John Brown used to do." answer the question "Who discovered that Victoria's new Munshi lied about his parentage?" OPTIONS:
- yes
- no

A: yes

Problem: Does "In Mahayana, too, the Three Jewels are perceived as possessed of an eternal and unchanging essence and as having an irreversible effect: "The Three Jewels have the quality of excellence." answer the question "The Three Jewels are preceived as possessed of an eternal and unchanging what?" OPTIONS:
- yes
- no

A:
no