Later genetic studies strongly supported dogs and gray wolves forming two sister monophyletic clades within the one species, and that the common ancestor of dogs and extant wolves is extinct.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): The common relative of dogs and existing wolves is now considered what?
Ah, so.. extinct.

After the downfall of the prior Gupta Empire in the middle of the 6th century, North India reverted to small republics and small monarchical states ruled by Gupta rulers. Harsha was a convert to Buddhism. He united the small republics from Punjab to central India, and their representatives crowned Harsha king at an assembly in April 606 giving him the title of Maharaja when he was merely 16 years old. Harsha belonged to Kanojia. He brought all of northern India under his control. The peace and prosperity that prevailed made his court a center of cosmopolitanism, attracting scholars, artists and religious visitors from far and wide. The Chinese traveler Xuan Zang visited the court of Harsha and wrote a very favorable account of him, praising his justice and generosity.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In which century did the Gupta Empire fall?
Ah, so.. middle of the 6th century

Protestants reject the Roman Catholic Church's doctrine that it is the one true church, believing in the invisible church, which consists of all who profess faith in Jesus Christ. Some Protestant denominations are less accepting of other denominations, and the basic orthodoxy of some is questioned by most of the others. Individual denominations also have formed over very subtle theological differences. Other denominations are simply regional or ethnic expressions of the same beliefs. Because the five solas are the main tenets of the Protestant faith, non-denominational groups and organizations are also considered Protestant.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What other entities are also considered to be Protestant?
Ah, so..
non-denominational groups and organizations