Title: Protestantism.
Question: If done properly, what Protestant practice does the Catholic Church recognize?

Title: Hellenistic period.
Question: From whom did the Scythians of Central Asia discover Hellenistic culture?

Title: Law of the United States.
Question: Who has the power and right to enact statutes for interstate dealings?

Title: Nanjing.
Question:
What type of railway lines are now under construction?