Position-velocity (p-v) diagram along the yellow line shown in Fig. 5. The horizontal dashed cyan line corresponds to the systemic v_lsr velocity of 4.35 km s⁻¹ (Szabó et al. 2023a), and the vertical line corresponds to the source position. The contours start at 5σ and end at 35σ with 5σ steps in between. The peaks of the redshifted emission are labeled R1 and R2, and the peak of the blueshifted emission is labeled B1. The white arrows highlight the weak fingers that may trace episodic ejection events.