Classification of core evolutionary stages based on molecular outflow and warm gas tracers for core 1-6. The first column shows the 1.3 mm continuum emission in grey colorscale and black contours, overlaid with the CO 2-1 integration map in blue and red contours. The contour levels for continuum are 1.3×10^-4 Jy beam^-1 ×(5, 10, 20, 40, 80, 160). The CO emission is integrated over 5 to 15 km s^-1 relative to the systemic velocity for each core for blueshifted and redshifted lobe, respectively, with levels of 0.03 Jy beam^-1 km s^-1 × (10, 20, 40, 80, 160). The shaded blue and red arrows show the orientation of the identified outflows. The Columns 2-5 show the integration map of different lines over 5 km s^-1 interval centered on the systemic velocity, with contour levels σ^×(5, 10, 20, 40, 80). In all panels the core is indicated by one or more ellipse, with green color indicating prestellar, magenta indicating association with molecular outflow, and orange indicating association with “warm core” tracers.