Answer:
A pair of star-cross’d lovers take their life
Explanation:
Possibly one of the most famous stories in the world, probably the most famous of the love stories and certainly the most tragic of them, "Romeo and Juliet" does not require presentations. The prologue to this story reveals the important points of this story, including the tragic ending with the phrase "A pair of star-cross'd lovers take their life"
Prologue is a text or a warning, usually brief that precedes a written work and whose purpose is to present it to the reader, is the same as introduction, preface, preamble.