Guidelines v2.1

• New section on relative clauses
• Expanded section on answer fragments
• New section on Coordinated Main Relations
• New appendix: interesting examples
• Remote Relators allowed in rare cases
• Possessives: add policy for social/organizational relationships
• Revised treatment of existential "there"
• Expanded discussion of preposition stranding
• Revised treatment of dates and addresses: multiple Centers instead of unanalyzable
• Under Appendix: Restrictions Summary, add taxonomy of kinds of units (Scene, Sub-scene, Superparallel, Lexical)
• Add bibliography
• Remove Focus Constructions section, which is covered by sections on Expletive "it" and Existential "there"
• Debugging some examples; minor clarifications and proofing