Does the sentence "As a result, patents required to implement MP3 expired in most countries by December 2012, 21 years after the publication of ISO CD 11172." provide a valid answer to the question "How long does it take for patents to expire after being filed?"

A: no

Does the sentence "The second son, Ordono, reigned in Galicia, while the third, Fruela, received Asturias with Oviedo as his capital." provide a valid answer to the question "Who was Alfonso III's third son and what area did he receive?"

A: yes

Does the sentence "Much contemporary casual clothing is made of knit materials that do not readily wrinkle, and do not require ironing." provide a valid answer to the question "What material doesn't easily wrinkle?"

A: yes

Does the sentence "Geologists often prefer the term bitumen." provide a valid answer to the question "What group likes the term bitumen instead of asphalt?"

A:
yes