Definition: Given a paragraph about movies and a set of conversational questions and answers about the paragraph, say whether the passage contains sufficient information to answer the follow-up question. Say Yes if it is answerable; otherwise, say No. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`, and the follow-up question has a prefix `FOLLOWUP_Q:`.
Input: CONTEXT: Travellers is about saving people in the future not in the present by altering the course of history. The people from the future can only do this safely and without unpredictable side-effects on the timeline if they don't "save" lives in the past. Their future technology actually does allow them to replace people who were not about to die, but they regard this as a moral problem and it is forbidden. But they can take over those lives if they were about to be eliminated from the timeline, hence the apparent paradox of "saving" McClaren. But they haven't actually saved McClaren at all, they have replaced him with a traveller. Early in the series only people about to die get replaced. Obviously the whole point is to alter the timeline but the travellers are aiming not for minor alterations like saving a single, random life, but for big alterations that radically change the course of history. One of their protocols actually forbids them from saving other lives as well even when they know someone is about to die (but not be replaced). This [minor spoiler alert] becomes a source of some dramatic tension in later episodes.  <sep>  Q: Why does MacLaren die in the first episode of Travelers? A: Travellers is about saving people in the future not in the present by altering the course of history  Q: what does this mean, How can people do this? A: people from the future can only do this safely and without unpredictable side-effects on the timeline if they don't "save" lives in the past  Q: Does this then mean that Mclaren is not dead? A: they haven't actually saved McClaren at all, they have replaced him with a traveller  Q: Have they saved lots of people from dying? A: One of their protocols actually forbids them from saving other lives as well even when they know someone is about to die (but not be replaced  <sep> FOLLOWUP_Q: They saved him from falling down an elevator shaft, is this typical in other episodes?

Yes