Mapping of the H₂O emission lines and the corresponding continuum emission (frequencies have been shown accordingly in the white text) in the sources with both para J = 2 and ortho J = 3 H₂O lines observed. The contours of the continuum emission start from 6σ in step of 10σ, and the contours of the H₂O emission start from 3σ in step of 1σ. Asymmetric negative contours are shown in white dashed lines. For each observation, the 1σ contours for the continuum (mJy beam^-1) and the H₂O emission line (Jy km s^-1 beam^-1) are as follows: G09v1.97 H₂O(2₁₁–2₀₂)(0.17/0.57), G09v1.97 H₂O(3₂₁–3₁₂)(0.25/0.38), G12v2.43 H₂O(2₀₂–1₁₁)(0.29/0.48), G12v2.43 H₂O(3₂₁–3₁₂)(0.30/0.53), NCv1.143 H₂O(2₁₁–2₀₂)(0.16/0.36) and NCv1.143 H₂O(3₂₁–3₁₂)(0.42/0.72).