original: The Erotian surface gravity varies greatly, since Eros is not a sphere but an elongated peanut-shaped (or potato- or shoe-shaped) object.
simplifications: The Erotian surface gravity varies because Eros is not a sphere.  Eros is an elongated peanut-shaped object. Gravity on Eros can change greatly because it isa peanut-shaped object. Gravity on Eros is different everywhere, because it is not a sphere but a peanut-shaped object. The Erotian surface gravity varies greatly. Eros is not a sphere. It is an elongated peanut-shaped (or potato or shoe-shaped) object. The Erotian surface gravity varies greatly. This is because Eros is not a sphere but a long peanut-shaped (or potato- or shoe-shaped) object. The Erotian surface gravity varies a lot. Eros is not a sphere but an elongated peanut-shaped (or potato- or shoe-shaped) object. Eros is not a sphere but an elongated peanut-shaped (or potato- or shoe-shaped) object, thus the Erotian surface gravity varies. The gravity on Eros is different in various places. This is because Eros is not round but is peanut-shaped. Eros isn't a sphere but an elongated peanut-shaped (or potato or shoe-shaped) object, so the surface gravity varies greatly. Gravity on the Erotian surface varies as Eros isn't a sphere but more peanut-shaped.