Input: Article: Armies typically have air defence in depth, from integral MANPADS such as the RBS 70, Stinger and Igla at smaller force levels up to army-level missile defence systems such as Angara and Patriot. Often, the high-altitude long-range missile systems force aircraft to fly at low level, where anti-aircraft guns can bring them down. As well as the small and large systems, for effective air defence there must be intermediate systems. These may be deployed at regiment-level and consist of platoons of self-propelled anti-aircraft platforms, whether they are self-propelled anti-aircraft guns (SPAAGs), integrated air-defence systems like Tunguska or all-in-one surface-to-air missile platforms like Roland or SA-8 Gecko.

Now answer this question: Stinger and Igla are two examples of what type of system?

Output: smaller force levels

Input: Article: Despite being an original story, Spectre draws on Ian Fleming's source material, most notably in the character of Franz Oberhauser, played by Christoph Waltz. Oberhauser shares his name with Hannes Oberhauser, a background character in the short story "Octopussy" from the Octopussy and The Living Daylights collection, and who is named in the film as having been a temporary legal guardian of a young Bond in 1983. Similarly, Charmian Bond is shown to have been his full-time guardian, observing the back story established by Fleming. With the acquisition of the rights to Spectre and its associated characters, screenwriters Neal Purvis and Robert Wade revealed that the film would provide a minor retcon to the continuity of the previous films, with the Quantum organisation alluded to in Casino Royale and introduced in Quantum of Solace reimagined as a division within Spectre rather than an independent organisation.

Now answer this question: Who were the writers of Spectre?

Output: Neal Purvis and Robert Wade

Input: Article: Anthropologists maintain that hunter/gatherers don't have permanent leaders; instead, the person taking the initiative at any one time depends on the task being performed. In addition to social and economic equality in hunter-gatherer societies, there is often, though not always, sexual parity as well. Hunter-gatherers are often grouped together based on kinship and band (or tribe) membership. Postmarital residence among hunter-gatherers tends to be matrilocal, at least initially. Young mothers can enjoy childcare support from their own mothers, who continue living nearby in the same camp. The systems of kinship and descent among human hunter-gatherers were relatively flexible, although there is evidence that early human kinship in general tended to be matrilineal.

Now answer this question: What permanent group representative do hunter-gatherers not have?

Output:
permanent leaders