An ordinary Petri net is a bipartite directed graph composedof places, drawn as circles, and transitions, drawn as bars. A formal denitionfollows [3]:Denition 2.1 An ordinary Petri Net (PN) is a 5-tuplePN = (P;T;I ;I + ;M 0) where:1. P = fp 1 ;p 2 ;:::;p n gis a nite and non-empty set of places,2.
The Colors of Geraniums. Geraniums come in a host of colors, from the traditional white, red and pink to the more exotic orange and purple. Geraniums (Pelargonium spp.) are popular garden favorites that can be cultivated throughout all the USDA hardiness zones as annuals or year-round as indoor plants.
Geranium is a genus of 422 species of flowering annual, biennial, and perennial plants that are commonly known as the cranesbills.They are found throughout the temperate regions of the world and the mountains of the tropics, but mostly in the eastern part of the Mediterranean region.onfusingly, geranium is also the common name of members of the genus Pelargonium (sometimes known as 'storksbill'), which are also in the Geraniaceae family.