Assertion: tree's root | /r/HasProperty | split
Facets:
Source sentences:
text: If the root must be split, then the process of a single 3-node is followed: a temporary 4-node root is split into three 2-nodes, one of which is considered to be the root.
text: Depth only increases when the root is split, maintaining balance.
text: If the root must be split, then the process of a single 3-node is followed: a temporary 4-node root is split into three 2-nodes, one of which is considered to be the root.