Two. Urban planners. Map to the right, map to the left. Right, a tower there, a sidewalk here. Yes? No, a bridge. On the sidewalk? No sidewalk, just a bridge. But a bridge implies two sides. Yes, this side of the sidewalk and that side of the sidewalk. Too short a distance. Uhm… You think? Yes. Map to the left, map to the right. Urban planners. Two.