Bossam Rule Language - Query language

Bossam Rule Language is a query language created in 2004.

#4137on PLDB

20Years Old

Bossam Rule Language first developed in Electronics & Telecommunications Research Institute
Read more about Bossam Rule Language on the web: 1.

Example from the web:

prefix family = http://family.com/Family#;
namespace = http://family.com/Johns#;
rule r1 is
 if
  family:isFatherOf(?x,?y)
  and family:isBrotherOf(?z,?
 then
  family:isUncleOf(?z,?y);
fact f1 is
 family:isFatherOf(John,Bob);