Sentence 1: Over the door, Surya, the Apollo-like sun god, rides in a chariot drawn by seven prancing horses, an animal rarely seen in Nepali art.

Sentence 2: Over the door, we see Surya riding on the back of an elephant.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: For example, such approvals could be evidenced by purchase orders signed by an authorized official or travel orders and vouchers signed by supervisors.

Sentence 2: The purchases require an authority to sign them off.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: The capital of Ibiza, called simply Ibiza, or Ibiza Town, has a population of almost 35,000.

Sentence 2: The population of Ibiza Town is almost 35k.
Is this second sentence entailed by the first?

Answer:
yes