diff --git a/docs/source/key-concepts-core-types.rst b/docs/source/key-concepts-core-types.rst
index 4fca77796f..dc930342ed 100644
--- a/docs/source/key-concepts-core-types.rst
+++ b/docs/source/key-concepts-core-types.rst
@@ -42,9 +42,9 @@ identifier for convenience purposes.
 Transaction lifecycle types
 ---------------------------
 
-The ``WireTransaction`` class contains the core of a transaction without signatures, and with references to attachments
-in place of the attachments themselves (see also :doc:`key-concepts-data-model`). Once signed these are encapsulated in the
-``SignedTransaction`` class. For processing a transaction (i.e. to verify it) a ``SignedTransaction`` is then converted to a
+A ``WireTransaction`` instance contains the core of a transaction without signatures, and with references to attachments
+in place of the attachments themselves (see also :doc:`key-concepts-data-model`). Once signed these are encapsulated in a
+``SignedTransaction`` instance. For processing a transaction (i.e. to verify it) a ``SignedTransaction`` is then converted to a
 ``LedgerTransaction``, which involves verifying the signatures and associating them to the relevant command(s), and
 resolving the attachment references to the attachments. Commands with valid signatures are encapsulated in the
 ``AuthenticatedObject`` type.