For the purposes of these examples, assume the following:
https://idp.example.edu/idp/shibboleth
https://idp.example.edu/idp/profile/SAML2/Redirect/SSO
https://portal.example.edu/
https://portal.example.edu/shibboleth
https://portal.example.edu/Shibboleth.sso/SAML2/POST
https://portal.example.edu/portlet1/shibboleth
https://service.example.com/orderstatus
https://service.example.com/shibboleth
https://service.example.com/Shibboleth.sso/SAML2/PAOS