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.
Humidity is essential for your dormant geraniums to survive over the winter. Too dry an environment will kill your dormant geraniums. If you see your geraniums have dried, soak them for two or three hours in a bucket or sink of water, then return them to their bags.umidity is essential for your dormant geraniums to survive over the winter. Too dry an environment will kill your dormant geraniums. If you see your geraniums have dried, soak them for two or three hours in a bucket or sink of water, then return them to their bags.