Task: Question Answering
Input (English): Background Paragraph: We discussed earlier some basic principles about the behavior of gases called the kinetic-molecular theory. Among other things, this theory suggests that gas molecules are in constant motion, and the average speed of the individual gas particles is dependent upon temperature – the higher the temperature, the faster the molecules move. It is not just gas particles that are in constant motion. The molecules and ions that make up liquids and solutions are also continually moving in nearly random directions. As a result, molecules and ions in a solution will collide with one another fairly frequently. As with gases, a temperature increase will produce an increase in the average particle speed. 
Story: A new volcano is growing underwater. Every few days it has minor lava flow eruptions off the coast of Hawaii. People have actually enjoyed swimming in the water above this newly forming volcano because it is very soothing and relaxing. 
Question: Will the speed of the water molecules around the hot lava increase or decrease?
Output (English): increase.