narrative: William came over to Isaac's house. They both went outside to play. William and Isaac kicked a soccer ball together. They began to get tired. They both went back inside Isaac's house.
question: Why did They both go back inside Isaac 's house?
original_sentence_for_question: They both went back inside Isaac's house.
answer: they were tired.
original_narrative_form: William came over to Isaac's house. They both went outside to play. William and Isaac kicked a soccer ball together. They began to get tired. They both went back inside Isaac's house.
question_meta: rocstories_narrative_25509_sentence_4_question_1