Premise: Przyrobacki returned from the press conference late, totally absorbed by the fractal construction of a cellular anti-stem theory, with which he was infected by an accidentally met professor from the same institute.

Hypothesis: Przyrobacki was obsessed with the cellular anti-step theory.
Answer: yes

Premise: Return to Kedumin Square and make your way down to the picturesque fishing port by way of the ancient, narrow honey-coloured alleyways.

Hypothesis: Fresh fish may be purchased at a small market in the fishing port.
Answer: it is not possible to tell

Premise: David Duke is back.

Hypothesis: I'm glad David Duke is back.
Answer: it is not possible to tell

Premise: well thank you and you have a good day okay bye-bye

Hypothesis: I hope you have the worst day ever.
Answer: no