infospace: process book-1-chapter-11

Extract entities, map to VSM, and synthesize analysis.

examples/infospace-with-history/output/entities/rice-countries.md

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+<!-- generated: provider=openrouter model=arcee-ai/trinity-large-preview:free date=2026-02-19 source=book-1-chapter-11 -->
+
+# Rice Countries
+
+## Definition
+
+Regions where rice is the primary agricultural product and staple food, such as parts of Asia and the American South. Rice cultivation typically requires specific environmental conditions and intensive labor, leading to different economic dynamics than wheat-producing regions.
+
+## Source Chapter
+
+Book I, Chapter 11
+
+## Context
+
+Smith uses rice countries to illustrate how the nature of the primary agricultural product affects the distribution of economic returns, particularly how rice cultivation can support higher rents due to its high productivity per acre.
+
+## Economic Domain
+
+Production
+
+---