Q: Does "Soldiers are also equiped with various hand grenades, such as the M67 fragmentation grenade and M18 smoke grenade." provide a valid answer to "What type of frag grenade is used by the U.S. Army?"?
A: yes

Q: Does "Liszt was in attendance at Chopin's Parisian debut on 26 February 1832 at the Salle Pleyel, which led him to remark: "The most vigorous applause seemed not to suffice to our enthusiasm in the presence of this talented musician, who revealed a new phase of poetic sentiment combined with such happy innovation in the form of his art."" provide a valid answer to "Which friend received the letter in which Chopin referenced Liszt?"?
A: no

Q: Does "The majority of the 300,000 tourist visas granted in 2003 were obtained by Asian Muslims, who presumably intended to visit important pilgrimage sites in Mashhad and Qom." provide a valid answer to "What does Teheran, Isfahan, Mashhad, and Shiraz have in common?"?
A: no

Q: Does "Beyonce's lighter skin color and costuming has drawn criticism from some in the African-American community." provide a valid answer to "What advertisement was Beyonce's skin supposedly lightened in?"?
A:
no