Does the sentence "In the 20th century, Tennessee transitioned from an agrarian economy to a more diversified economy, aided by massive federal investment in the Tennessee Valley Authority and, in the early 1940s, the city of Oak Ridge." provide a valid answer to the question "What part of the Manhattan Project did Tennessee host?"

A: no

Does the sentence "While both systems use energy in converting higher voltage AC from the USSR's power grid to lower voltage DC, the conversions for the DC system all took place (at higher efficiency) in the railway substation, while most of the conversion for the AC system took place inside the locomotive (at lower efficiency)." provide a valid answer to the question "What came with lesser lesser cost mobile conversion hardware or stationary hardware?"

A: no

Does the sentence "This collection of around 45,000 books is derived from a personal collection of Kaiser Shamsher Jang Bahadur Rana." provide a valid answer to the question "Who did the Kaiser Library's books previously belong to?"

A: yes

Does the sentence "In 1993, to complement its own direct sales channel, Dell planned to sell PCs at big-box retail outlets such as Wal-Mart, which would have brought in an additional $125 million in annual revenue." provide a valid answer to the question "What was one retailer that were going to sell Dell PCs?"

A:
yes