  AI models (including LLM) often rely on narrative question-answering (QA)
datasets to provide customized QA functionalities to support downstream
children education applications; however, existing datasets only include QA
pairs that are grounded within the given storybook content, but children can
learn more when teachers refer the storybook content to real-world knowledge
(e.g., commonsense knowledge). We introduce the FairytaleCQA dataset, which is
annotated by children education experts, to supplement 278 storybook narratives
with educationally appropriate commonsense knowledge. The dataset has 5,868 QA
pairs that not only originate from the storybook narrative but also contain the
commonsense knowledge grounded by an external knowledge graph (i.e.,
ConceptNet). A follow-up experiment shows that a smaller model (T5-large)
fine-tuned with FairytaleCQA reliably outperforms much larger prompt-engineered
LLM (e.g., GPT-4) in this new QA-pair generation task (QAG). This result
suggests that: 1) our dataset brings novel challenges to existing LLMs, and 2)
human experts' data annotation are still critical as they have much nuanced
knowledge that LLMs do not know in the children educational domain.
