{"messageId": "4864", "unrefinedText": "Th istory of jaz muzic is deeplee rooted in Afrikan-Amerikan cultur. It evolvd from blues an ragtime in th sentury early 20th , karekterized by improvization an synkopated rythms. Legendery performrs like Loois Armstrong an Ella Fitzjerald helped popalarize jenre worldwide"}
{"messageId": "4864", "refinedText": "The history of jazz music is deeply rooted in African-American culture. It evolved from blues and ragtime in the early 20th century, characterized by improvisation and syncopated rhythms. Legendary performers like Louis Armstrong and Ella Fitzgerald helped popularize the genre worldwide."}