input with options: Fact 1: When light enters the eye through the pupil , that light falls on the retina.  Fact 2: Receptors are cells in the retina that perceive light.  Given the two facts above, what part of the eye perceives light when light enters through the pupil?
output: receptors

input with options: Fact 1: The surface of a beach is formed by mechanical weathering.  Fact 2: Beaches and Sand Dunes Dunes are accumulations of sand blown from the beach by the wind.  Given the two facts above, what makes sand formations?
output: wind

input with options: Fact 1: Roots grow in length and width from primary and secondary meristem.  Fact 2: Primary growth results primarily from activity of the lateral meristems.  Given the two facts above, what grow in length and width results primarily from activity of the lateral locations?
output: Roots

input with options: Fact 1: Acavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone.  Fact 2: Limestone caves are formed when acids attack and dissolve the calcite in limestone.  Given the two facts above, what are caverns formed from?
output: