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:`.

[EX Q]: CONTEXT: I think the key is the line "He could've gone for general, but he went for himself instead." Kurtz had apparently lost interest in climbing higher in the military ranks, which presumably would have taken him away from combat and the front lines. He seemed to want to go in the opposite direction -- toward the heat of the fight -- so Kurtz requested Airborne training as a first step toward returning to combat. Kurtz took himself out of the running for promotion by enrolling in Airborne training. Promotion would have required continuing to follow an advancing career path -- whereas Kurtz brought his career advancement to a halt by enrolling in Airborne training.  <sep>  Q: What was the significance of Kurtz joining airborne
[EX A]: Yes

[EX Q]: CONTEXT: I don't have official source or script to draw from. However, my read on that scene is that they were waiting for the humans. The whole nest seems to be in a sort of button-up-and-fortify mode. The most the Vikings sniff of a dragon is the tail that gets whisked out of sight. This is more than likely intentional - note that the eerie sound that continues while the Vikings land and fortify continues right up until they punch the hole. It's a very similar sound to the sound the other Alpha dragons make in the second movie, while exerting dominance or control. The Alpha is holding it's nest on tight guard, possibly to pounce once it feels right. That all seems to go out the window when Stoick signals a fireball launched in. Whether that was just an agressive surprise, or read as some kind of direct challenge, I couldn't say for sure. The dragons in the tunnel though, didn't move until that moment, and it mostly seems to be an action of I'm-getting-the-heck-out-of-the-way as that Alpha decides to muscle out and deal with this personally.  <sep>  Q: Why didn't the dragons leave their lair earlier? A: The Alpha is holding it's nest on tight guard  Q: What is the Alpha and how is it different to the other dragons? A: exerting dominance or control  Q: How do the Alpha dragons exert dominance or control? A: The Alpha is holding it's nest on tight guard, possibly to pounce once it feels right  Q: What else can you tell me about the dragons or their lair? A: The dragons in the tunnel though, didn't move until that moment, and it mostly seems to be an action of I'm-getting-the-heck-out-of-the-way  <sep> FOLLOWUP_Q: I was wondering if the dragons lost their friends?
[EX A]: Yes

[EX Q]: CONTEXT: In addition to Faizan's answer of giving them as sacrifices to be spared by the White Walkers, you also have to consider that Craster was sleeping with his own daughters, likely for his enjoyment (and less for theirs) and they were also doing all their work for him. So new daughters simply mean more workers and more "company", while a son is not really of use to him. And it is clear that Craster isn't really a man to shed tears for his dying kin. Rather on the contrary, a son could actually be a danger to him if he grows up and decides to revolt against his father's cruelty to his sisters. Craster has conditioned his daughters into obedience to him (and even more so in a medieval world where women were even less likely to revolt against their patriarch, even if they actually would have been able to do so in unison). A son might be harder to keep "under control" and as said, wouldn't have any use for Craster, since he doesn't really need a fighter, due to his arrangement with the Crows. It would merely mean a disruptance to the nice little life he's built himself there. So I think even without the White Walkers a son probably wouldn't have a long life at Craster's Keep.  <sep>  Q: Why does Craster give those sacrifices to the White Walkers?
[EX A]:
Yes