Premise: Dr. Arroway (Foster) explains herself to Joss (McConaughey).

Hypothesis: Dr. Arroway explained herself after doing the wrong surgery on Joss.
Answer: it is not possible to tell

Premise: He felt a pang of pity, and when he forgot he didn't have anything to sit on, he felt down and broke his arm.

Hypothesis: He broke his arm for the second time this year.
Answer: it is not possible to tell

Premise: How do these people decide that their doctor is the best?

Hypothesis: How do people decide that their doctor is superior?
Answer: yes

Premise: The site of the cathedral of Notre-Dame de Paris has had a religious role for at least 2,000 years.

Hypothesis: Pagan rituals used to take place on the grounds of Notre-Dame some 1800 years ago.
Answer: it is not possible to tell