Input: Read this: Edwin Chadwick's 1829 article, "Preventive police" in the London Review, argued that prevention ought to be the primary concern of a police body, which was not the case in practice. The reason, argued Chadwick, was that "A preventive police would act more immediately by placing difficulties in obtaining the objects of temptation." In contrast to a deterrent of punishment, a preventive police force would deter criminality by making crime cost-ineffective - "crime doesn't pay". In the second draft of his 1829 Police Act, the "object" of the new Metropolitan Police, was changed by Robert Peel to the "principal object," which was the "prevention of crime." Later historians would attribute the perception of England's "appearance of orderliness and love of public order" to the preventive principle entrenched in Peel's police system.
Question: When was 'Preventive Police' published?

Output: 1829

Input: Read this: Jantar Mantar located in Connaught Place was built by Maharaja Jai Singh II of Jaipur. It consists of 13 architectural astronomy instruments. The primary purpose of the observatory was to compile astronomical tables, and to predict the times and movements of the sun, moon and planets.
Question: What is one of the primary purposes of the Jantar Mantar observatory?

Output: compile astronomical tables

Input: Read this: The Russians evacuated Wallachia and Moldavia in late July 1854. With the evacuation of the Danubian Principalities, the immediate cause of war was withdrawn and the war might have ended at this time.:192 However, war fever among the public in both the UK and France had been whipped up by the press in both countries to the degree that politicians found it untenable to propose ending the war at this point. Indeed, the coalition government of George Hamilton-Gordon, 4th Earl of Aberdeen fell on 30 January 1855 on a no-confidence vote as Parliament voted to appoint a committee to investigate mismanagement of the war.:311
Question: War fever from what two countries caused the war to continue on?

Output: UK and France

Input: Read this: Bilateral treaties are concluded between two states or entities. It is possible, however, for a bilateral treaty to have more than two parties; consider for instance the bilateral treaties between Switzerland and the European Union (EU) following the Swiss rejection of the European Economic Area agreement. Each of these treaties has seventeen parties. These however are still bilateral, not multilateral, treaties. The parties are divided into two groups, the Swiss ("on the one part") and the EU and its member states ("on the other part"). The treaty establishes rights and obligations between the Swiss and the EU and the member states severallyit does not establish any rights and obligations amongst the EU and its member states.[citation needed]
Question: Bilateral treaties are concluded between how many states or entities?

Output:
two