<e1>Asthma</e1> is a disease of the respiratory system, which causes swelling and <e2>narrowing</e2> of the airways.
Asthma is a disease
Asthma is a disease of the respiratory system, which causes swelling and narrowing of the airways.
<triplet> Asthma <subject> narrowing <object> Cause-Effect(e1,e2)