narrative: Kelly's brother married Alaina. Alaina liked Kelly a lot. She invited her to paint ceramics. They called their outing Sister Day. Every year, they celebrated Sister Day in a new way.
question: Why did They call their outing Sister Day?
original_sentence_for_question: They called their outing Sister Day.
answer: they were sisters-in-law.
original_narrative_form: Kelly's brother married Alaina. Alaina liked Kelly a lot. She invited her to paint ceramics. They called their outing Sister Day. Every year, they celebrated Sister Day in a new way.
question_meta: rocstories_narrative_17857_sentence_3_question_2