Include Paulo Moura's Logtalk OO LP system

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@53 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

Logtalk/examples/birds/NOTES

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+=================================================================
+Logtalk - Object oriented extension to Prolog
+Release 2.8.4
+
+Copyright (c) 1998-2001 Paulo Moura.  All Rights Reserved.
+=================================================================
+
+
+To load all objects in this example consult the birds.loader utility
+file.
+
+You will also need to also load the library/hierarchies.loader file.
+Note that the *.loader files are Prolog files.
+
+This folder contains an example of a bird identification expert system 
+adopted with permission from the book "Adventure in Prolog" by Amzi! inc. 
+The book is available on-line in HTML format at the URL:
+
+	http://www.amzi.com
+
+Please refer to the book for more information on the original example.
+
+
+The bird identification hierarchy is organized as a prototype hierarchy
+as follows:
+
+	<order>
+		<family>
+			<bird>
+
+order
+	falconiforms
+		falcon
+			peregrine_falcon
+			sparrow_hawk
+		vulture
+			california_condor
+			turkey_vulture
+	passerformes
+		flycatcher
+			ash_throated_flycatcher
+			great_crested_flycatcher
+		swallow
+			barn_swallow
+			cliff_swallow
+			purple_martin
+	tubenose
+		fulmar
+		albatross
+			black_footed_albatross
+			laysan_albatross
+	waterfowl
+		duck
+			female_mallard
+			male_mallard
+			pintail
+		goose
+			canada_goose
+			snow_goose
+		swan
+			trumpeter_swan
+			whistling_swan
+
+