Input:

The River Ure is a river in North Yorkshire, England, approximately 74 mi long from its source to the point where it changes name to the River Ouse. It is the principal river of Wensleydale, which is the only one of the major Dales now named after a village rather than its river. The old name for the valley was Yoredale after the river that runs through it.

Sentence: Children play in the river Ure in Wensleydale.

Output: It's impossible to say

Input:

R/V "Atlantis" is an oceanographic research vessel operated by the Woods Hole Oceanographic Institution as part of the University-National Oceanographic Laboratory System (UNOLS) fleet. She is the host vessel of DSV "Alvin". She is named for the first research vessel operated by the Woods Hole Oceanographic Institution, R/V "Atlantis" for which the "Atlantis" is also named.

Sentence: The Woods Hole Oceanographic Institution is an oceanographic research vessel.

Output: No

Input:

German Siemens and ThyssenKrupp may sell relevant core technology to China, which owns the first commercially operated maglev line.

Sentence: the agent is aged 20

Output: It's impossible to say

Input:

Steam or smoke is seen pouring from the open manhole in Old Street in a shocking video taken at the scene. A pile of rubble is by the manhole cover as shocked witnesses gather at the scene. One person can be heard saying: "It exploded!" Another can be says: "What the f**k! Oh my God." A third said: "That was scary. Did anyone get hurt?"

Sentence: There is video evidence of the explosion

Output:
Yes