Problem: USS "PC-1168" was a "PC-461"-class submarine chaser built for the United States Navy during World War II. "PC-1168" is notable for being the ship on which the film "You're in the Navy Now", which starred Gary Cooper, was filmed in 1950. The ship was later transferred to the Republic of China Navy, serving from 1954 to 1970 as ROCS "Ching Kiang" (PC-116).

Based on the paragraph above can we conclude that "China has never owned submarines."?

A: No

Problem: How to tune a unison on a piano<br>Open up the piano to expose both the tuning pins and the keys. Depending on the piano, this usually requires removal of the front part of the upper cabinet and sometimes the key cover. Play the offending note and find the strings associated with that note.

Based on the paragraph above can we conclude that "You usually will need to remove the front part of the upper cabinet."?

A: Yes

Problem: The Secret<br>Abby knew her husband was hiding something. She confronted him about the secret he was keeping. He refused to tell her. The next day, she found a gift on her pillow when she woke up. He had surprised her with a diamond ring!

Based on the paragraph above can we conclude that "The diamond ring was expensive"?

A:
It's impossible to say