1. A video recording apparatus comprising: a content accumulation part accumulating video content; a feature extraction processing part extracting an image or voice as a feature from the video content accumulated by the content accumulation part, and obtaining word information from the extracted image or the extracted voice; a word information acquisition part acquiring sorted word information obtained using clustering processing on word information identified from an image captured by a camera; and a content retrieval part retrieving relevant video content from the video content accumulated by the content accumulation part based on the sorted word information acquired by the word information acquisition part and the word information acquired by the feature extraction processing part.