Supporting Material: 1) UMP chapter from Carvalho PhD Dissertation.pdf: a) Chapter V from Rommel N. Carvalho's PhD Dissertation explaining in detail the UMP-ST process. b) Appendix B from Rommel N. Carvalho's PhD Dissertation with the use cases implementation details. 2) model/: Folder with PR-OWL files of the final version of the fraud in public procurement model. This is the model discussed both in the paper and in Rommel N. Carvalho's PhD Dissertation. 3) Instructions on how to Install UnBBayes core and UnBBayes-MEBN plugin: https://sourceforge.net/p/unbbayes/wiki/Installation%20Instruction%20of%20UnBBayes-MEBN%20plug-in/ 4) E-mails.docx: Examples of e-mails we got from all over the world saying how hard it is to model Probabilistic Ontologies and asking how we do it. These e-mails motivated us to come up with the UMP-ST process.