Glossary in general: how about some parallelism?
2101: "As in "A-node"
2107: "An 'assertion' node"
2134: "The subject of"
2173: "In a topic map graph"
2176: "Syntactic constructs"
2194: "Provided with"
2212: "Are defined by"
2257: "The x-generic node serves"
etc., etc.
The items do generally begin with a short phrase, then start up a new
sentence, but some, like 2224 are long constructs with dependent phrases.
2218 starts with a sentence.