Task: Question Answering
Input (English): Question: Ian sees an object with many colliding particles, and he compares it to another object with few colliding particles. Which is true about the objects? 
 Option1: the object with many colliding particles has a lower concentration of particles 
 Option2: the object with many colliding particles has a higher concentration of particles 
 Explanation: At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react.
Output (English): the object with many colliding particles has a higher concentration of particles