Sentence 1: It took several deep breathes to squeeze into them.

Sentence 2: They are smaller than the being attempting to squeeze into them.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Although swords, bows, and arrows remained the mainstays of warfare, suddenly matchlocks, muskets, and cannons made their appearance.

Sentence 2: Swords, bows, and arrows remained the mainstays of warfare for only a short time.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: The Emerald Coast's 70 km (43 miles) of rugged cliffs and caves alternate with quiet resorts offering sandy beaches.

Sentence 2: Quiet, tourist-friendly resorts with great beaches can be found along the Emerald Coast.
Is this second sentence entailed by the first?

Answer:
yes