Figure 3: This figure shows a simple T-Pattern involving only two different event-types: (y, e, view, long y, b, lookat, picturecard), where y = child y, e = ends, view, long = viewing (a picture-card in the viewer) for over 3 s, y,b,lookat,picturecard = y begins looking at a picturecard (not in the viewer). In other words, y after looking at a picture card for a while (>3 s) in the viewer and y begins considering (look at) another card.