\version "2.7.17"
\layout {
 \context {
   \Score
   \accepts "OrchestraStaffGroup"
 }
 \context {
   \StaffGroup
   \name OrchestraStaffGroup
   \remove "Span_bar_engraver"
   \accepts "InstrumentStaffGroup"
 }
 \context {
   \StaffGroup
   \name InstrumentStaffGroup
   \remove "System_start_delimiter_engraver"
 }
} \score {
<< \relative
\new StaffGroup <<
\new Staff << {  R1 } >>
\new Staff << {  R1 } >> >>
\new OrchestraStaffGroup <<
 \new InstrumentStaffGroup <<
      \new GrandStaff <<
     \new Staff { R1 }
     \new Staff { R1}
   >>
  \new Staff << { R1  } >> >>
\new InstrumentStaffGroup <<
   \new Staff <<
     \context Voice = melody { c'1 }
     \lyricsto melody \new Lyrics { do }
   >>
 >>
 \new InstrumentStaffGroup <<
   \new Staff { \clef bass R1 }
   >> >> >> }