Does the sentence "During most of the war, the UN navies patrolled the west and east coasts of North Korea, sinking supply and ammunition ships and denying the North Koreans the ability to resupply from the sea." provide a valid answer to the question "What weapon posed a significant threat to US navy ships?"

A: no

Does the sentence "Some organisms are best identified by stains other than the Gram stain, particularly mycobacteria or Nocardia, which show acid-fastness on ZiehlNeelsen or similar stains." provide a valid answer to the question "What color is typical for Gram-negative bacteria after staining?"

A: no

Does the sentence "Mithridates the Great was the ruler of Pontus, a large kingdom in Asia Minor (modern Turkey), from 120 to 63 BC." provide a valid answer to the question "Who was the leader of Pontus in the year 85 BC?"

A: yes

Does the sentence "It is the northernmost of the 155 crosstown streets mapped out in the Commissioner's Plan of 1811 that established the numbered street grid in Manhattan." provide a valid answer to the question "Which street forms the boundary between Harlem and Washington Heights?"

A:
no