Input: Read this: The tram system that now criss-crosses the historic city centre complements walking and biking in it. The centre has been transformed into a pedestrian priority zone that enables and invites walking and biking by making these active modes of transport comfortable, safe and enjoyable. These attributes are accomplished by applying the principle of "filtered permeability" to the existing irregular network of streets. It means that the network adaptations favour active transportation and, selectively, "filter out" the car by reducing the number of streets that run through the centre. While certain streets are discontinuous for cars, they connect to a network of pedestrian and bike paths which permeate the entire centre. In addition, these paths go through public squares and open spaces increasing the enjoyment of the trip. This logic of filtering a mode of transport is fully expressed in a comprehensive model for laying out neighbourhoods and districts – the Fused Grid.
Question: What do bike paths go through to add enjoyment to the trip?

Output: public squares


Input: Read this: Part of the Russian resistance was credited[by whom?] to the deployment of newly invented blockade mines. Perhaps the most influential contributor to the development of naval mining was a Swede resident in Russia, the inventor and civil engineer Immanuel Nobel (the father of Alfred Nobel). Immanuel Nobel helped the Russian war effort by applying his knowledge of industrial explosives, such as nitroglycerin and gunpowder. One account dates modern naval mining from the Crimean War: "Torpedo mines, if I may use this name given by Fulton to self-acting mines underwater, were among the novelties attempted by the Russians in their defences about Cronstadt and Sevastopol", as one American officer put it in 1860.
Question: Who named the torpedo mines?

Output: Fulton


Input: Read this: Consistent with the missions and priorities outlined above, the Canadian Armed Forces also contribute to the conduct of Canadian defence diplomacy through a range of activities, including the deployment of Canadian Defence Attachés, participation in bilateral and multilateral military forums (e.g. the System of Cooperation Among the American Air Forces), ship and aircraft visits, military training and cooperation, and other such outreach and relationship-building efforts.
Question:  What is not an example of another activity that the CAF performs?

Output: unanswerable


Input: Read this: In abstract algebra, more general structures are defined by relaxing some of the axioms defining a group. For example, if the requirement that every element has an inverse is eliminated, the resulting algebraic structure is called a monoid. The natural numbers N (including 0) under addition form a monoid, as do the nonzero integers under multiplication (Z ∖ {0}, ·), see above. There is a general method to formally add inverses to elements to any (abelian) monoid, much the same way as (Q ∖ {0}, ·) is derived from (Z ∖ {0}, ·), known as the Grothendieck group. Groupoids are similar to groups except that the composition a • b need not be defined for all a and b. They arise in the study of more complicated forms of symmetry, often in topological and analytical structures, such as the fundamental groupoid or stacks. Finally, it is possible to generalize any of these concepts by replacing the binary operation with an arbitrary n-ary one (i.e. an operation taking n arguments). With the proper generalization of the group axioms this gives rise to an n-ary group. The table gives a list of several structures generalizing groups.
Question: Axioms are defined by relaxing what?

Output:
unanswerable