diff --git a/ch02_overview.adoc b/ch02_overview.adoc
index 19ed9198..1de5077d 100644
--- a/ch02_overview.adoc
+++ b/ch02_overview.adoc
@@ -366,7 +366,7 @@ wallet application creates the transaction outputs (payments).
 
 ==== Creating the Outputs
 
-A transaction output is
+A transaction output((("outputs", "constructing transactions"))) is
 created with a
 script that says something like, "This output is paid to whoever can
 present a signature from the key corresponding to Bob's public address."
@@ -383,7 +383,7 @@ transaction as the payment to Bob. Essentially, Alice's wallet breaks
 her funds into two outputs: one to Bob and one back to herself. She can
 then spend the change output in a subsequent transaction.
 
-Finally, for the transaction to be processed by the network in a timely
+Finally, for the transaction to be processed by the network in a((("transaction fees"))) timely
 fashion, Alice's wallet application will add a small fee. The fee is not
 explicitly stated in the transaction; it is implied by the difference in value between
 inputs and outputs.  This _transaction fee_ is collected by the