A woman lying in the grass in the park is wearing a red top and black capri pants and is barefoot.
A woman is sitting on a park bench wearing sandals.
Lying and sitting are two different actions.  Barefoot means not wearing shoes and sandaIs are a type of shoe.
If the woman is barefoot it means she is not wearing sandals. Lying and sitting cannot be happening simultaneously.
The woman cannot be lying in the grass and sitting on a park bench at the same time.