sentence: When a student came in , he was also surprised to see so many people inside , but , after a while , he realized what was really happening : dozens of wet raincoats had been left on the chairs by students of another course .
modified: When a student came in , also he was surprised to see so many people inside , but , after a while , he realized what was really happening : dozens of wet raincoats had been left on the chairs by students of another course .
transformation: WO