R100 spectra for the different z ∼ 6.9 sources and regions identified in the spectral images presented in Fig. 2. The apertures used are shown in Fig. 3, and further details in Appendix A. The W spectrum is contaminated by the foreground lens galaxy continuum and Paα line (marked in red), which is close to Hβ of W (see the lens spectrum in Fig. 4). The black vertical dashed lines mark the expected position of the corresponding lines for a z ∼ 6.92.