SN 2019hcc: a Type II supernova displaying early O ii lines. - Parrag, Eleonora; Inserra, Cosimo; Schulze, Steve; Anderson, Joseph; Chen, Ting-Wan; Leloudas, Giorgios; Galbany, Lluis; Gutiérrez, Claudia P; Hiramatsu, Daichi; Kankare, Erkki; Müller-Bravo, Tomás E; Nicholl, Matt; et al. (Monthly Notices of the Royal Astronomical Society, 2021)