Assertion: archipelago's island | /r/HasProperty | explored
Facets:
Source sentences:
text: The island was first explored and named by the expedition of G.A. Ushakov and Nikolay N. Urvantsev in 1930–32.
text: The island was first explored and named by the expedition of Georgy Ushakov and Nikolay Urvantsev in 1930–32.