Answer:
Plot.
Step-by-step explanation:
In Aristotle´s Poetics, he defines the constitutive elements that make up a tragedy. Amongst these elements, Aristotle defines the parts of a tragedy, which are plot, character, thought, diction, melody, and comedy. Plot, in particular, refers to the arrangement of incidents in the play, following a logical sequence that stems from the situation (a before and after) and the agency of the character involved. Incidents invariably go, through reversals, from bad to good, or from good to bad.