Assertion: arthropod's brain | /r/MadeOf | fusion of the ganglia
Facets:
value: ahead of
type: TEMPORAL
Source sentences:
text: The basic arthropod central nervous system consists of a pair of nerve cords running below the gut, with paired ganglia as local control centers in all segments; a brain formed by fusion of the ganglia for the head segments ahead of and behind the mouth, so that the esophagus is encircled by this conglomeration of ganglia.