Although it looks like a simple invertebrate, the acorn worm displays primitive chordate features such as a dorsal nerve cord and pharyngeal gill slits.

Although her first idea was small, she believed that great oaks from little acorns grow and kept working on it.

When she hesitated to start her small project, I reminded her that mighty oaks from little acorns grow.

Although she started with only a small idea, tall oaks from little acorns grow and now her company employs hundreds.

Despite the judge's grim sentence, he joked about having to ride a horse foaled by an acorn with a wry smile.

She kept riding a horse foaled by an acorn until dawn painted the sky.

By the time we reached the clearing, she had already ridden a horse foaled by an acorn, and the villagers stared in disbelief.

Every morning, she rides a horse foaled by an acorn through the misty valley, as if following an old fairy tale.

Yesterday, I rode a horse foaled by an acorn through the enchanted forest, and everyone watched in astonishment.

Yesterday, I rid a horse foaled by an acorn across the misty meadow and barely made it back before sunset.