Question:
Based on the premise "Begrudgingly, one of the security men snatched the disc.", can we conclude that "The security guard took the stolen disc."?
****
Answer:
it is not possible to tell

Question:
Based on the premise "In 1881, King David Kalakaua launched a world tour, visiting the heads of state in Japan, Thailand, Egypt, and England.", can we conclude that "David Kalakaua was a King in 1881."?
****
Answer:
yes

Question:
Based on the premise "got got the vocabulary down and everything", can we conclude that "Spent a year studying hard in English class."?
****
Answer:
it is not possible to tell