Cartoons of two scenarios of the nuclear structure: (A) “Near face-on scenario” with the inflow structures marked with curves and arrows, and a nearly head-on blueshifted outflow structure, and a redshifted flow directed away from us, likely obscured by the disk. The dashed parallelogram marks foreground material that obscures the outflow in HCN and HCO⁺. (B) “Near edge-on scenario” where the inflowing gas connects to a heavily inclined disk. The blue-shifted outflow may partially be obscured by HCN and HCO⁺ gas flows in the outskirts of the inclined disk, but not fully. Additional obscuring material is likely necessary. For both figures, east is to the left and north is up.