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SYNTACTIC ARGUMENTATION AND RADICAL CONSTRUCTION GRAMMAR 2. Parts of Speech 3. Syntactic Categories and Semantic Relativity 4. Grammatical Relations/Syntactic Roles 5. DEPENDENCY, CONSTITUENCY, AND LINEAR ORDER 6. A Radical Approach to Syntactic Relations 7. Heads, Complements, and Adjuncts 8. THE VOICE CONTINUUM 9. The Coordination-Subordination Continuum 10. Syntactic Theory and the Theory of Language
William Croft (Mon,) studied this question.