Q: Does "With little convincing, visitors believed his dog could articulate "How are you grandma?"" provide a valid answer to "What did Bell instruct his dog to do?"?
A: no

Q: Does "In the 1860s, a ring of Palmerston forts was constructed around the outskirts of Devonport, to protect the dockyard from attack from any direction." provide a valid answer to "In kilometers, how long was the Plymouth Sound Breakwater?"?
A: no

Q: Does "The initial appearance of entire groups of well developed organisms in the oldest fossil-bearing layers, now known as the Cambrian explosion, posed a problem." provide a valid answer to "What is the name of the group of well-developed organisms that were discovered within fossil-bearing layers?"?
A: yes

Q: Does "Downloaded files use 5.1 surround audio and are encoded using VC-1 for video at 720p, with a bitrate of 6.8 Mbit/s." provide a valid answer to "What resolution are videos sold through this service?"?
A:
yes