connected|1|1
connected|2|1
connected|3|1
connected|4|0
connected|5|0
connected|6|0
disconnected|1|1
disconnected|2|1
disconnected|3|1
disconnected|4|2
disconnected|5|2
disconnected|6|2
nulls|1|1|LINESTRING(0 0,1 0)
nulls|2|1|LINESTRING(0 0,0 1)
nulls|3||
nulls|4|1|LINESTRING(1 1,1 0)
nulls|5|0|LINESTRING(0 0,1 1)
nulls|6|0|LINESTRING(1 0,0 1)
empty|1|1|LINESTRING(0 0,1 0)
empty|2|0|LINESTRING EMPTY
empty|3|0|LINESTRING EMPTY
empty|4|1|LINESTRING(1 1,1 0)
empty|5|0|LINESTRING(0 0,1 1)
empty|6|1|LINESTRING(1 0,0 1)
coverage edges all|MULTILINESTRING((10 10,10 0),(10 0,0 0,0 10,10 10),(10 10,20 10,20 0,10 0))
coverage edges exterior|MULTILINESTRING((10 0,0 0,0 10,10 10),(10 10,20 10,20 0,10 0))
coverage edges interior|MULTILINESTRING((10 10,10 0))
coverage edges array|MULTILINESTRING((10 10,10 0),(10 0,0 0,0 10,10 10),(10 10,20 10,20 0,10 0))
