The soil produces (karpophorei | καρποφορεῖ | pres act ind 3 sg) a (karpophorei | καρποφορεῖ | pres act ind 3 sg) crop (karpophorei | καρποφορεῖ | pres act ind 3 sg) all by itself: first the stalk, then the head, then the full grain in the head.
Reference
Mark 4:28
Sequence
3