Problem: Does "At the end of the century the Silk Exchange (Llotja de la Seda) building was erected as the city became a commercial emporium that attracted merchants from all over Europe." answer the question "What building attracted merchants from other countries to Valencia?"

A: yes

Problem: Does "These two reforms were implemented by the Calendar (New Style) Act 1750." answer the question "What act did Britain use to implement the use of the Gregorian calendar?"

A: yes

Problem: Does "Today, Strasbourg's different public and institutional libraries again display a sizable total number of incunabula, distributed as follows: Bibliotheque nationale et universitaire, ca." answer the question "What kind of building holds incunabula's today?"

A:
yes