1.29.9.27.2. Repository structure:

Repository contains many nodes with primary type nt:unstructured. Each node contains 'text' property and 'rule' property with different values.

root
- node1(nt:unstructured) rule='boost1' text='The quick brown fox jump...'
- node2(nt:unstructured) rule='boost2' text='The quick brown fox jump...'
- node3(nt:unstructured) rule='boost3' text='The quick brown fox jump...'