Generate a context and a hypothesis.
Context: Ferocactus fordii (ford barrel cactus) is a species of flowering plant in the family Cactaceae, native to Baja California in Mexico. It is spherical, growing to 50 cm in diameter, with whitish-grey radial spines and solitary flowers of a deep rose pink, 4 cm in diameter.

Hypothesis: It grows to 50 inches in diameter. 