XML 1.0 Entity references example in 4.4.5

Hi editor,

Please let me know if it is ok to refernece a Parameter Entity with a
'normal' entity reference.

PS. it is done in chapter 4.4.5 example (&YN;), but not in chapter 4.5
example (%pub;).

<!ENTITY % YN '"Yes"' >
<!ENTITY WhatHeSaid "He said &YN;">


Regards

Jens Dyhre Mouritzsen
Tele Danmark, UTTN, 4.2.123
Telegade 2
DK-2630 Taastrup
Phone:  +45  43 34 52 97 
Fax:      +45  43 71 88 64
e-mail:  jdm@tdk.dk