MY LINES ...

My first thoughts about STRUCTURE are LINES. If I were to be putting pen on paper, I'd be drawing a selection of these:

• straight, curved, angled, thick, thin, small, large, taper, radiate, dotted, solid,
• several, varied, joined, separate, linked, 
• show direction, provide a shape, provide an appearance, give an outline shape, create an illusion, suffer an after image, give a position, form a junction,
• invisible lines made by 'light', liquid/gravity, gas

I'm now off to do this digitally !