['strength', 'drop', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
["Synset('good_fortune.n.01')", 'roll-51.3.1', 'EmptyParameter', 'EmptyParameter', 'EmptyParameter']
The pulsar's strength drops below sending range.
the pulsar's Synset('good_fortune.n.01') drops below sending Synset('home_appliance.n.01').