@prefix skos:	<http://www.w3.org/2004/02/skos/core#> .
@prefix isac:	<http://webisa.webdatacommons.org/concept/> .
isac:_equation_	skos:broader	isac:math_problem_ .
isac:_geometry_	skos:broader	isac:math_problem_ .
isac:_subtraction_	skos:broader	isac:math_problem_ .
isac:_again_	skos:broader	isac:math_problem_ .
isac:_answer_	skos:broader	isac:math_problem_ .
isac:_concept_	skos:broader	isac:math_problem_ .
isac:_however_	skos:broader	isac:math_problem_ .
isac:_lesson_	skos:broader	isac:math_problem_ .
isac:_number_	skos:broader	isac:math_problem_ .
isac:_problem_	skos:broader	isac:math_problem_ .
isac:_program_	skos:broader	isac:math_problem_ .
isac:_puzzle_	skos:broader	isac:math_problem_ .
isac:_result_	skos:broader	isac:math_problem_ .
isac:_world_	skos:broader	isac:math_problem_ .
isac:_also_	skos:broader	isac:math_problem_ .
isac:_formulum_	skos:broader	isac:math_problem_ .
isac:_everything_	skos:broader	isac:math_problem_ .
isac:_head_	skos:broader	isac:math_problem_ .
isac:_anything_	skos:broader	isac:math_problem_ .
isac:_fraction_	skos:broader	isac:math_problem_ .
isac:_game_	skos:broader	isac:math_problem_ .
isac:_life_	skos:broader	isac:math_problem_ .
isac:_question_	skos:broader	isac:math_problem_ .
isac:_time_	skos:broader	isac:math_problem_ .
isac:_calculus_	skos:broader	isac:math_problem_ .
isac:math_problem_	skos:broader	isac:math_problem_ .
isac:_following_	skos:broader	isac:math_problem_ .
isac:_algebra_	skos:broader	isac:math_problem_ .
isac:_math_	skos:broader	isac:math_problem_ .
isac:word_problem_	skos:broader	isac:math_problem_ .