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 essential oil information. Our geranium essential oil is extracted from the plant Pelargonium odorantissimum, of the Geraniaceae family and is extracted from a different plant than its cousin rose geranium essential oil-as this more expensive oil is extracted from Pelargonium graveolens. It will help to balance the oil production of the skin and help keep it supple, while the cicatrisant properties ensure that it is helpful in wound healing, including burns, wounds and ulcers. 2  Diluted in shampoo. 3  Geranium oil can also be diluted in shampoo to help with head lice.