Question:
Based on the premise "um-hum which which seems so awful", can we conclude that "It is really the worst"?
****
Answer:
it is not possible to tell

Question:
Based on the premise "In a minute she resumed: "I don't know how long it was before I came back to consciousness.", can we conclude that "She went on, "I think I was out for hours, if not days.""?
****
Answer:
it is not possible to tell

Question:
Based on the premise "Very likely.", can we conclude that "Very unlikely."?
****
Answer:
no