Example ID event annotation. The association of a TCS with an organism is captured through an event structure involving a PROCESS ("virulence") and POSITIVE REGULATION. Regulation types are used to capture also statements of general causality such as "is essential for" here. (Simplified from PMC ID 2358977).
Pyysalo et al. BMC Bioinformatics 2012 13(Suppl 11):S2 doi:10.1186/1471-2105-13-S11-S2