course(122, c_programming, dave_marshall).
course(233, operating_systems, jeremy_smith).
course(325, expert_systems, andrew_jones).
course(422, neural_networks, antonia_jones).
course(256, databases, alex_grey).
 
lecture(1, 122, introduction).
lecture(2, 122, basic_syntax).
lecture(3, 122, memory_management).
lecture(4, 122, pointers).
lecture(1, 233, introduction).
lecture(2, 233, kernel).
lecture(1, 325, introduction).
lecture(2, 325, trees).
lecture(3, 325, predicate_calculus).
lecture(1, 422, introduction).
lecture(2, 422, backpropagation).
lecture(3, 422, gamma_test).
lecture(1, 256, introduction).
lecture(2, 256, oracle).
lecture(3, 256, processing_queries).
 
attended(william_parsons, 422,1).
attended(william_parsons, 422,2).
attended(william_parsons, 325,1).
attended(william_parsons, 325,2).
attended(william_parsons, 325,3).
attended(james_smith, 122, 1).
attended(james_smith, 122, 2).
attended(james_smith, 122, 3).
attended(james_smith, 122, 4).
attended(james_smith, 233, 2).
attended(helen_randall, 256,1).
attended(helen_randall, 256,2).
attended(helen_randall, 256,3).
attended(helen_randall, 233,1).
attended(helen_randall, 422,1).