Assertion: zygote's cell | /r/CapableOf | form new cavity
Facets:
value: at the same time
type: TEMPORAL
value: into the exocelomic cavity
type: TRANSITIVE-OBJECT
Source sentences:
text: At the same time, other migrating cells form into the exocelomic cavity a new cavity named the secondary or definitive yolk sac, smaller than the primitive yolk sac.