I'm autistic and I think a bit differently. I have superior memory and visual thinking, but I have a problem with converting real thing to abstract. I'd like to model reality processes with Petri nets. But... when I think of cooking meal or using a coffee vendor machine, I see in my head vegetables, kitchen utensils, cooking books and coffee machines I have seen in my entire life, but no graphs.

I am able to draw for example binary counters, because their graphs look like real things. But I can't see Greek salad as a graph. I need some help. When I see the examples, I should learn it all very quickly, but now I have nothing to start and nobody to ask.