diff --git a/apl.md b/apl.md
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--- a/apl.md
+++ b/apl.md
@@ -1,6 +1,8 @@
 # apl
 
-- [[read]] [[a pattern language]]
-  - [[go]] https://anagora.org/go/a-pattern-language/hypothesis
-
+- a [[programming language]].
+  - see also [[BQN]]
+- a [[book]].
+  - #read [[a pattern language]]
+  - #go https://anagora.org/go/a-pattern-language/hypothesis