Hello, I started to explore ontologies for creating a database for describing lab experiments in a machine-readable format. I find it hard to rely only on BioPAX as I am not completely sure yet what experiments will come up in the future and if BioPAX can currently support all of the features I need. I saw that OBO has many ontologies too, and I am a little confused regarding what's the difference and if I can use both BioPAX and OBO. I am new to the world of biological ontologies(and ontologies in general), so any relevant article/ advice/ book is welcome! Thanks!