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Based on observations made with the Italian Telescopio Nazionale Galileo (TNG) operated on the island of La Palma by theCentro Galileo Galilei of the INAF (Istituto Nazionale di Astrofisica) at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias.

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A direct comparison of absolute fluxes gives O I$~\lambda$1.1287$~\mu$m/O I$~\lambda$8446 $\geq~$2 (higher if we consider that our narrower slit captured less light from the seeing-limited BLR). A comparison of O I fluxes scaled to the [S III] lines (after correcting for differences in the apertures) gives O I$~\lambda$1.1287$~\mu$m/O I$~\lambda$8446 $\sim~$4 (higher if the aperture corrections are not used).

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