Because several poems in Birthday Letters are explicit rewrites of Plath's poems, critics have decided to take up this question.
Critics have decided to analyze why several poems in Birthday Letters are rewrites, a matter that has been brought up only recently.
mnli hypothesis: Critics have decided to analyze why several poems in Birthday Letters are rewrites, a matter that has been brought up only recently. premise: Because several poems in Birthday Letters are explicit rewrites of Plath's poems, critics have decided to take up this question.