information, @xref{Annotations}.
If an extent has its @code{detachable} property set, it will become
-@dfn{detached} (i.e. no longer in the buffer) when all its text its
+@dfn{detached} (i.e. no longer in the buffer) when all its text is
deleted. Otherwise, it will simply shrink down to zero-length and
-sit it the same place in the buffer. By default, the @code{detachable}
+sit in the same place in the buffer. By default, the @code{detachable}
property is set on newly-created extents. @xref{Detached Extents}.
If an extent has its @code{duplicable} property set, it will be