1Seq-align-set ::= {{ 2 type partial , 3 dim 2 , 4 segs 5 denseg { 6 dim 2 , 7 numseg 1 , 8 ids { 9 local id 1 , 10 local id 2 }, 11 starts { 12 0 , 13 0 } , 14 lens { 15 2 } , 16 strands { 17 plus , 18 plus } 19 } 20}, { 21 type partial , 22 dim 2 , 23 segs 24 denseg { 25 dim 2 , 26 numseg 1 , 27 ids { 28 local id 1 , 29 local id 2 } , 30 starts { 31 1 , 32 2 } , 33 lens { 34 3 } , 35 strands { 36 plus , 37 plus } 38 } 39}} 40