Teacher:In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Teacher: Now, understand the problem? Solve this instance: Question: The triple point of water is at 273.16 K and 611 Pascals: 
 Options:  <0> In no other combination of pressure and temperature it is possible to find the three phases of water in equilibrium. <1> Under these conditions, liquid and vapor become indistinguishable. <2> The sublimation process occurs at a pressure greater than 611 pascals. <3> It is not possible to find steam above 611 Pascals. <4> It is not possible to find water in solid state below 273.16 K.
Student:
pharmacology