Question:
She became so interested in the area's ongoing struggle and the local culture that she decided to study it systematically, exiting from her marriage to return there.

Does it follow that "She was so interested in this project, that she even left her husband to research there."?
Answer:
yes

Question:
He had not a stubble of hair on his chin.

Does it follow that "His chin was freshly shaven."?
Answer:
it is not possible to tell

Question:
The oak shelving is original, as are the metal cages in which scholars were locked so as to prevent thefts.

Does it follow that "Scholars were locked in metal cages to prevent thefts."?
Answer:
yes

Question:
Of course not.

Does it follow that "Absolutely not."?
Answer:
yes