Input: Article: In Canada, the Supreme Court of Canada was established in 1875 but only became the highest court in the country in 1949 when the right of appeal to the Judicial Committee of the Privy Council was abolished. This court hears appeals of decisions made by courts of appeal from the provinces and territories and appeals of decisions made by the Federal Court of Appeal. The court's decisions are final and binding on the federal courts and the courts from all provinces and territories. The title "Supreme" can be confusing because, for example, The Supreme Court of British Columbia does not have the final say and controversial cases heard there often get appealed in higher courts - it is in fact one of the lower courts in such a process.

Now answer this question: If a provincial case is appealed, how is the Supreme Court's decision applied?

Output: The court's decisions are final and binding

Input: Article: Until the 1950s guns firing ballistic munitions were the standard weapon; guided missiles then became dominant, except at the very shortest ranges. However, the type of shell or warhead and its fuzing and, with missiles the guidance arrangement, were and are varied. Targets are not always easy to destroy; nonetheless, damaged aircraft may be forced to abort their mission and, even if they manage to return and land in friendly territory, may be out of action for days or permanently. Ignoring small arms and smaller machine-guns, ground-based air defence guns have varied in calibre from 20 mm to at least 150 mm.

Now answer this question: What was the standard weapon until the 1950s?

Output: guns firing ballistic munitions

Input: Article: A few lines of the Paris Métro in France operate on a four-rail power scheme because they run on rubber tyres which run on a pair of narrow roadways made of steel and, in some places, concrete. Since the tyres do not conduct the return current, the two guide rails provided outside the running 'roadways' double up as conductor rails, so at least electrically it is a four-rail scheme. One of the guide rails is bonded to the return conventional running rails situated inside the roadway so a single polarity supply is required. The trains are designed to operate from either polarity of supply, because some lines use reversing loops at one end, causing the train to be reversed during every complete journey. The loop was originally provided to save the original steam locomotives having to 'run around' the rest of the train saving much time. Today, the driver does not have to change ends at termini provided with such a loop, but the time saving is not so significant as it takes almost as long to drive round the loop as it does to change ends. Many of the original loops have been lost as lines were extended.

Now answer this question: How train is able to turn around after each completed journey?

Output:
reversing loops