Problem: Does "By the beginning of the 15th century, the Ottoman advance meant that Byzantine territory in Greece was limited mainly to its then-largest city, Thessaloniki, and the Peloponnese (Despotate of the Morea)." answer the question "At the start of 15th century, the biggest Byzantine city was what?" OPTIONS:
- yes
- no

A: yes

Problem: Does "By the 2000 census, demographic changes including the end to slavery, immigration from Europe and Asia, assimilation of multiracial persons, and other factors resulted in a population in which 6.2% of the population identified as black, 40% as pardo, and 55% as white." answer the question "How much identified as white?" OPTIONS:
- yes
- no

A: yes

Problem: Does "The Houston area is the top U.S. market for exports, surpassing New York City in 2013, according to data released by the U.S. Department of Commerce's International Trade Administration." answer the question "What designation does the Globalization and World Cities Study Group give Houston?" OPTIONS:
- yes
- no

A:
no