Does "Louis did not leave a son as heir after his death in 1382." contain the correct answer to "How old was Sigismund of Luxemburg when he was named heir?"

A: no

Does "This satellite was launched into orbit from a military base in China." contain the correct answer to "Where was Nigeria's second satellite launched?"

A: yes

Does "As noted in the 2012 collaborative Smithsonian-Monticello exhibit, Slavery at Monticello: The Paradox of Liberty, Jefferson, then a widower, took Hemings as his concubine for nearly 40 years." contain the correct answer to "How long were Jefferson and Hemmings in a relationship?"

A:
yes