You are provided with an "Event", "Intent" and "XEmotion" (PersonX's reactions for the given "Event"). Indicate PersonY's reaction (person feels) at the end of this event. Provide one reaction for PersonY. If there's nothing that can be implied, respond as None

[EX Q]: Event:PersonX is having a party at PersonX's house. Intent: 1) to train his dog to bring back the ball once he throws it. XEmotion: 1) good
[EX A]: happy.

[EX Q]: Event:PersonX provides PersonY understanding. Intent: 1) to take a lesson home 2) to analyze the situation. XEmotion: 1) happy 2) contented
[EX A]: grateful

[EX Q]: Event:PersonX draws PersonY conclusion. Intent: 1) to save future. XEmotion: 1) safe 2) satisfied
[EX A]:
knowledgable