a0d929ca_WSRP_v2_0_Specification__Statement_text
[#] CS149 [Section] 9.2.2 [Statement text] 
All content outside the {} pairs and all {} pairs containing tokens the Producer/Portlet does not recognize MUST be treated by the Producer/Portlet as constants the Consumer needs to receive when the portlet URL is activated.
WSRP v2.0 Specification
Statement text