Dust continuum and CO(6−5) emission line maps of QSOs J1319+0950 and J2054−0005. Top left panel: 103 GHz dust continuum map of QSO J1319+0950 (levels −3, −2, 2, 3, 5, 10, and 20σ, σ = 0.005 mJy/beam). The clean beam (0.30 × 0.30 arcsec², PA = −78.56°) is indicated in the lower left corner of the diagram. Top right panel: CO(6−5) map of QSO J1319+0950 (levels −3, −2, 2, 3, 5, 10, and 15σ, σ = 0.017 mJy/beam). The clean beam (0.32 × 0.31 arcsec², PA = −78.56°) is indicated in the lower left corner of the diagram. Bottom left panel: 92 GHz dust continuum map of QSO J2054−0005 (levels −3, −2, 2, 3, 5, 7 and 10σ, σ = 0.006 mJy/beam). The clean beam (0.42 × 0.32 arcsec², PA = −61.3°) is indicated in the lower left corner of the diagram. Bottom right panel: CO(6−5) map of QSO J2054−0005 (levels −3, −2, 2, 3, 5, 7 and 10σ, σ = 0.025 mJy/beam). The clean beam (0.39 × 0.30 arcsec², PA = −61.4°) is indicated in the lower left corner of the diagram. The cross indicates the position of the continuum peak for each source.