{ signal: [
{ wave: '10x....10', node: '.........'},
{ node: '.ab......'},
{ node: '.X..c....'},
{ node: '.Y.....d.'},
{ node: '.Z......e'}
],
edge: [
'a-b t0',
'X-c t1',
'Y-d t2',
'Z-e t3'
]
}