Assertion: tonsil's cell | /r/AtLocation | one another
Facets:
value: in a few other places
type: LOCATION
value: in the brain
type: LOCATION
value: closely
type: DEGREE
Source sentences:
text: In the brain and a few other places, endothelial cells are closely attached to one another, forming a tight seal so that any transfer of materials can occur only by passing across the endothelial cells (i.e., crossing endothelial membranes and cytoplasm).