PONIES FROM TOP TO BOTTOM, LEFT TO RIGHT
Sunbeams* –[married]– Clear Days* |–[brothers]–| Sunrays –[married]– Seascape
Starlight Glimmer –[married]– Sunburst |––[cousins]––| Sunset Shimmer –[married]– Flash Sentry
Supernova — Sunspot — Aurora Blaze |––[second cousins]––| North Start — Daybreak