For 10 points, name this Greek grain goddess, the mother of Persephone.
This figure caused Famine to make Erysichthon always hungry after he chopped down a tree sacred to this figure. Triptolemus became this figure's representative, and this figure attempted to make Demophoon immortal by placing him in the fire each night. She made an ivory shoulder for Pelops after accidentally eating his real one. A daughter of this goddess ate a pomegranate seed, forcing her to spend four months of the year in the underworld. For 10 points, name this Greek grain goddess, the mother of Persephone.
This figure caused Famine to make Erysichthon always hungry after he chopped down a tree sacred to this figure.
{Demeter} [accept {Ceres}]