Simple categories matching controllable:

• property,
• disease,
• waveform,
• cause,

Members with property controllable:

• variation,
• density,
• polio,
• square_wave,
• pore_size,
• typhoid,
• period,
• effort,
• insufficient_effort,
• diphtheria,
• measles,
• breaking_force,
• diabetes,
• tuberculosis,
• appearance,
• hardness,
• opacity,
• molecular_weight,
• shape,
• cancer,
• texture,
• long_period,
• strength,
• porosity,
• permeability,
• cardiovascular_disease,
• dm,
• surface_texture,
• light,
• goiter,
• use,
• sugar,
• arthritis,
• degradation,
• therapist_effort,
• low_effort,