Task: Text Categorization
Input (English): Question: The nitrogen: 
 Options:  <0> It is a highly reactive gas at room temperature. <1> Nitrogen molecules are constituted by two atoms linked together by a single bond. <2> It has a higher reactivity than other isoelectronic molecules such as CO, CNo or NO +. <3> At a sufficient temperature, it reacts with H2 to give NH3. <4> It barely forms binary compounds with the rest of the elements of the Periodic Table.
Output (English): chemistry