A <e1>plasma</e1> was generated by an electric <e2>discharge</e2> between electrodes located in the focal plane of the lens and separated by ~ 1 cm from one another.
A plasma was generated
A plasma was generated by an electric discharge between electrodes located in the focal plane of the lens and separated by ~ 1 cm from one another.
<triplet> plasma <subject> discharge <object> Cause-Effect(e2,e1)