abstract appearance artistic artwork background bits broken chips clean-up colored coloring colors coloured colouring colours contrast contrasting design Designs expression grouting irregular mosaic patterns shape shapes surface surfaces tiles care cutter cutting equipment fuel grass grass-cutter groundsman lawn lawn-care lawn-mower machine machinery man mower petrol-mower power rotary-mower rotation rough rustic trimmer trimming work workman chipped peace word faith love hope joy arrows blue communicating communication direction directional divergent diverging indication law no-alternative only pointer pointing sign signs specific splitting splitting-up street-sign traffic traffic-flow traffic-sign turn turning two-way white