Position-velocity cut of SiO(5–4), H₂S(2_2,0–2_1,1), CH₃OH-E(5_−1,4–4_-22), and ¹³CH₃OH–A(10_2,8–9_3,7) along the outflow A (PA = –40°). The position offsets are measured from the A1 position, positive towards northwest. The rms 1σ is 20 mJy beam^-1. Contour levels range from 3σ by steps of 3σ for SiO and ¹³CH₃OH–A, and from 3σ by steps of 10σ for H₂S and CH₃OH-E. Dashed vertical lines mark the position of the A1 and A2 YSOs, while the solid vertical line is for the average peak position of the typical hot-core tracers (see text). Solid horizontal line shows the systemic velocity (+111.0 km s^-1).