verseOne = \lyricmode { \set stanza = "1." This is the first al -- ter -- na -- tive }
verseTwo = \lyricmode { \set stanza = "2." \markup { \musicglyph #"rests.2" } And this is the se -- cond one }
melodyOne = \relative c'' {
  c4 d e f
  f e d c
}

\score {
  \new Staff <<
    \new Voice { \repeat volta 2 { \melodyOne } }
    \addlyrics { \verseOne }
    \addlyrics { \verseTwo }
  >>
}