[Q]: Only 29 families of frogs are known and most were identified and described in the mid-1800s and the last in 1926 .
Only 29 families of frogs are known , most of which were named by the mid-1800s .
(See options at the end). If the first sentence is true, is the second one also true?

[A]: no

[Q]: " This puts telemarketers on notice that we will take all measures necessary to protect consumers who chose to be left alone in their homes . "
" This puts telemarketers on notice that we will take all measures necessary to protect consumers who chose to be left alone in their homes , " FCC chairman Michael Powell said .
(See options at the end). If the first sentence is true, is the second one also true?

[A]: yes

[Q]: Microsoft has been awarded a patent for a feature in instant messaging that alerts a user when the person they are communicating with is inputting a message .
Microsoft has been awarded a patent on a popular instant-messaging feature that shows users when the person on the other end of the conversation is typing a message .
(See options at the end). If the first sentence is true, is the second one also true?

[A]:
yes