After closing the front door I realized that I had left the key  
inside the house. I felt even more guilty since it was not my own  
house but the house of people I hardly knew.
after closing the front door i realized that i had left the key  inside the house i felt even more guilty since it was not my own  house but the house of people i hardly knew
[INST] In this task, you will be performing a classification exercise aimed at identifying the underlying emotion conveyed by a given sentence. The emotions to consider are as follows: Anger, Joy, Sadness, Guilt, Shame, Fear, or Disgust Sentence: After closing the front door I realized that I had left the key  
inside the house. I felt even more guilty since it was not my own  
house but the house of people I hardly knew. [/INST] guilt