question: radio carbon dating indicated that the remains were 5300 to 5200 years old.
Capitalize this past sentence correctly.
A: Radio carbon dating indicated that the remains were 5300 to 5200 years old.

question: the printer is located away from other electronic devices that may interfere with the wireless signal.
Capitalize this past sentence correctly.
A: The printer is located away from other electronic devices that may interfere with the wireless signal.

question: abide - free english online dictionary based on wordnet 3.0
Capitalize this past sentence correctly.
A: Abide - Free English online dictionary based on WordNet 3.0