['< sod > * { { outer meshnumber | 2001 c11. 744. 212 | outer astigmatism } } - - - [ [ ⟩ astigmatism ] ] < an eod > < a sod > * { { meshnumber | c11. 2011 744. 2012 212 | astigmatism } } - - - [ [ [UNK] astigmatism ( optical systems ) | ∈ astigmatism ] ] < eod >']