Problem: Does "It was occupied by piratical kingdoms of the Barbary Coast, de facto independent since the 18th century." answer the question "What was one region included that was occupied by piratical kingdoms?"

A: no

Problem: Does "In grading lumber and structural timber, knots are classified according to their form, size, soundness, and the firmness with which they are held in place." answer the question "What's the process in which knots are classified called?"

A: yes

Problem: Does "As a result, Ottoman holdings in Europe declined sharply; Bulgaria was established as an independent principality inside the Ottoman Empire, Romania achieved full independence." answer the question "Who held back the Bulgarian uprising in 1876?"

A:
no