Sentence 1: 'So what're you going to do?' I demanded.

Sentence 2: I demand to know what you're going to do.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: A corner of the horizon was winter blue; a whole sweep of it was dead, featureless black.

Sentence 2: The black horizon filled Dave with a sense of dread.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Designed to invoke the castle architecture of the Tokugawa period, the theater was destroyed in an air raid in World War II and rebuilt in 1951.

Sentence 2: The theater, which was designed to invoke the castle architecture of the Tokugawa period, was destroyed in an air raid in World War II and rebuilt in 1951.
Is this second sentence entailed by the first?

Answer:
yes