Incomplete question. I provided an explanation about irony in literature.
<u>Explanation:</u>
Situational Irony is a literary device used by an author to express <u>an action in the plot of a story that is totally different from what the reader would expect.</u>
For example, a protagonist (the leading character) in a story with so much life in one story unexpectedly and tragically died. This is ironic because the reader would naturally expect the protagonist to save the day.
Involving the condition that a group of quantities connected by operators gives the same result whatever the order of quantities involved.
A sources copyright date is an indicator of accuracy
Free verse poetry is poetry that lacks a consistent rhyme scheme, metrical pattern, or musical form. While free verse poems are not devoid of structure, they allow enormous leeway for poets, particularly when compared to more metrically strict forms like blank verse.
Another answer: Closed form poetry, also known as fixed form, consists of poems that follow patterns of lines, meter, rhymes, and stanzas, whereas open form poetry does not.