Context:
Neil Tennant (born 1 March 1950 in South Africa) is Arts & Humanities Distinguished Professor of Philosophy at the Ohio State University. Along with Michael Dummett, Crispin Wright, and a few others, Tennant is one of the most notable figures in the contemporary realism/anti-realism debate. He has also written extensively on intuitionistic logic and other non-classical logics.
Hypothesis: Neil Tennant only wrote about non-classical logics.
It's impossible to say
Context:
Plane<br>The man got on the plane. He sat down next to the window. Someone said that he was in their seat. The man checked his ticket. The man moved to his correct seat.
Hypothesis: The guy who got on the plane sat in the wrong seat to start with
Yes
Context:
How to identify signs of dementia<br>Know the general symptoms. [substeps] Memory loss is the first and earliest sign of dementia. It is, however, more than just forgetting where you put your keys.
Hypothesis: Memory loss is not more than just forgetting where you put your keys.

No