Evolution of the Hα, He IIλ6560.10, He IIλ4685.80, C IVλλ5801.34, 5811.97, N IVλλλ7103.20, 7109.20, 7122.90, N IIIλλ4634.12, 4640.64, C IIIλλ4647.42, 4650.25, and He Iλ6678.15 lines, at 26.6 h (in black) and 33.8 h (in red) after the first light. Spectra are shifted to the zero-velocity positions of Hα, He IIλ4685.80, C IVλ5801.34, C IVλ5811.97, N IVλ7109.20, N IVλ7122.90, N IIIλ4640.64, C IIIλ4650.25, and He Iλ6678.15.