Color scale image of the integrated intensity (i.e., moment 0) maps of selected molecular line tracers overlapped with the contour map of the 1.3 mm dust continuum emission (only using the extended configuration for the dust continuum emission in the middle and lower panels). Pink crosses and black triangles indicate infrared (Quanz et al. 2007) and radio (Anglada et al. 1994) sources, respectively. The synthesized beam of each molecule is located at the bottom-right corner.