Custom Post with 3 Taxonomy

function cb_result_custom_post() {

// Register Custom Post
register_post_type( 'results',
        array(
                'labels' => array(
                        'name' => __( 'Results' ),
                        'singular_name' => __( 'Result' ),
                        'add_new' => __( 'Add New' ),
                        'add_new_item' => __( 'Add New Result' ),
                        'edit_item' => __( 'Edit Result' ),
                        'new_item' => __( 'New Result' ),
                        'view_item' => __( 'View Result' ),
                        'not_found' => __( 'Sorry, we couldn\'t find the Result you are looking for.' )
                ),
        'public' => true,
        'publicly_queryable' => false,
        'exclude_from_search' => true,
        'menu_position' => 14,
        'has_archive' => true,
        'hierarchical' => false,
        'capability_type' => 'page',
        'rewrite' => array( 'slug' => 'cb_result' ),
        'supports' => array( 'title', 'editor', 'custom-fields', 'thumbnail' )
        )
);


//Register Custom Taxonomy
register_taxonomy(
    'cb_result_year',  //The name of the taxonomy. Name should be in slug form (must not contain capital letters or spaces).
    'results',                  //post type name
    array(
        'hierarchical'          => true,
        'label'                         => 'Years',  //Display name
        'query_var'             => true,
        'show_admin_column'             => true,
        'rewrite'                       => array(
            'slug'                  => 'cb_result_year', // This controls the base slug that will display before each term
            'with_front'    => true // Don't display the category base before
            )
        )
);

register_taxonomy(
    'cb_result_class',  //The name of the taxonomy. Name should be in slug form (must not contain capital letters or spaces).
    'results',                  //post type name
    array(
        'hierarchical'          => true,
        'label'                         => 'Class',  //Display name
        'query_var'             => true,
        'show_admin_column'             => true,
        'rewrite'                       => array(
            'slug'                  => 'cb_result_class', // This controls the base slug that will display before each term
            'with_front'    => true // Don't display the category base before
            )
        )
);

register_taxonomy(
    'cb_result_semester',  //The name of the taxonomy. Name should be in slug form (must not contain capital letters or spaces).
    'results',                  //post type name
    array(
        'hierarchical'          => true,
        'label'                         => 'Semester',  //Display name
        'query_var'             => true,
        'show_admin_column'             => true,
        'rewrite'                       => array(
            'slug'                  => 'cb_result_semester', // This controls the base slug that will display before each term
            'with_front'    => true // Don't display the category base before
            )
        )
);



}
add_action( 'init', 'cb_result_custom_post' );