Occam’s razor-based deconvolution result of the subset of signals associated with C_nH_mNO parent and fragment species detected by the DFMS on 3 August 2015. The measured signals (measured) are given in arbitrary units (a.u.) with 30% error margins. The different contributions of the chosen candidate molecules are colour-coded according to their molecular structure – in shades of red and purple for chain-based molecules and in shades of green and blue for cyclic molecules.