The items in the list are all types of poems, but "Ode" is the odd one out because it differs in purpose and tone from the other three.

• Elegy, Epitaph, and Dirge are all associated with mourning or lamenting the dead:

  • Elegy is a poem of mourning for someone who has passed.

  • Epitaph is a brief inscription on a tombstone, often commemorating the deceased.

  • Dirge is a mournful song or poem, typically sung at funerals.

• Ode, however, is a type of poem that expresses praise or admiration for a subject, and is not necessarily related to mourning or death. It can celebrate various themes, including nature, people, or abstract concepts.