If the appositive phrase is needed to define the meaning of a noun then <u>don't use a comma</u>, if the appositive phrase defines enough where it can stand by it's self alone then <u>use commas around it.</u>
Anton Chekhov conceived of this play, which turned out to be his last, as a comedy,designating it “A Comedy in Four Acts” and even emphasizing to the Moscow Art Theatre that the last act should be “merry and frivolous.” He suggested that some portions were even farcical. Nevertheless, most interpretations and theatrical productions have emphasized its tragic aspects. It is understandable why the playwright’s intentions have been largely disregarded; the subject is a serious and depressing one including the family’s loss of their ancestral home and removal from it and other sad developments as well. The destruction of the orchard also represents the destruction of illusions—sad, to be sure, but perhaps hopeful.
Thus, as the inevitable change in society with the dawning of the 20th Century comes, the play represents this time period and portrays an end of an aristocratic era with both tragic and comic elements. The play is best characterized as a tragicomedy.
This is the worst movie of the ones we've seen lately.
Other option makes no sense when used in the sentence.
