{"type":"exercise","title":"Metadata test","description":"","content":"","editorMode":"JavaScript","metadata":{"title":"Metadata test","description":"Objetivos educativos.\nKeywords: tag1,tag2\nIdioma: francés\nDificultad: muy fácil\nTLT: 13 13 13\nAge range: 25-30.","keywords":["tag1","tag2"],"language":"fr","difficulty":"very easy","TLT":"PT13H13M13S","age_range":"25-30"}}