Problem: How does the next paragraph end?

A man is swinging on a balance beam. He jumps off and puts his hands in the air. he
A: gets back on the balance beam.

Problem: How does the next paragraph end?

A boy stands, outdoors, holding a skateboard in his arms and then puts the board down and begins to step on it. the boy
A: then stands on the board rocking back and forth on it.

Problem: How does the next paragraph end?

Woman wearing blue sweater crawl on all fours. Boys keep combing the hair and putting some hair rolls on the girls. woman in the middle
A: is irritated and stands and remove the rolls for th head and sits again and laugh a lot.

Problem: How does the next paragraph end?

How to perform column chromatography
Read and understand the lab procedure.
The goal of column chromatography is to separate and collect the desired chemical components from a mixture. Separation will occur within a column containing a stationary adsorbent and a mobile eluent (solvent).
A:
An impure sample is introduced to the column and eluted (or separated) by running eluent through the column. Separation will occur because your impure mixture is made up of different chemical components that will be unevenly adsorbed (attached) to the surface of the adsorbent.