Example 2D and 1D spectra of two representative galaxies in our sample. Top: 2D (top) and 1D (bottom) NIRSpec GLASS-JWST spectrum of 110 000 at z = 5.765 (green for the G235H/F170LP and purple for the G395H/F290LP configuration) and 1σ uncertainty (gray). Bottom: 2D (top) and 1D (bottom) NIRSpec DDT spectrum of 150015 at z = 5.041 (black) and 1σ uncertainty (gray). Vertical dashed lines mark the position of well-detected rest-optical emission lines. The continuum emission is also detected as seen in the 2D spectrum. On the x-axis in the bottom panel, the observed wavelength (Å) is reported.