two small girls on pink bicycles. one has got the knack - she sways from side to side as she pedals faster and faster, laughing. the other keeps losing her nerve, slowing, putting down her feet. their mum watches from the park bench, tightening their pink helmets, saying encouraging words. the girl who is biking fast falls off, her mum runs to pick her up, holds her, and sets her down when she's ready. she gets back on. they both keep on biking.