premise: O lieb, so lang du lieben kannst is a poem written by Ferdinand Freiligrath, a 19th-century German writer. In 1847, Hungarian composer Franz Liszt set the poem to music (soprano voice and piano), and eventually adapted it into his famous Liebesträume No. 3. The work is one of Liszt's most famous and poignant. "Liebesträume" in German means "Dreams of Love".
hypothesis: Dreams of Love showcased more than one musical number
reason: While it states that Dreams of Love had Liebestraume No 3, it did not state it had other numbers in it. Composers often stick a piece labeled 'number x' without adding the preceeding numbers. It is simply a version. The model probably got it wrong because it assumed '3' was part of a continuing series