Assertion: license's clause | /r/Desires | advertising materials
Facets:
value: to mention its use
type: PURPOSE
value: to credit the copyright holder
type: PURPOSE
Source sentences:
text: Some older permissive licenses, such as the 4-clause BSD license, the PHP License, and the OpenSSL License, have clauses requiring advertising materials to credit the copyright holder, which made them incompatible with copyleft licenses.
text: The Zend Engine, the core of the PHP interpreter, is separately licensed under the similar Zend Engine License, which contains similar naming restrictions to the PHP license (applying to the names "Zend" and "Zend Engine"), and a clause requiring advertising materials to mention its use.