1280
Here , we describe a case of severe masseter muscle rigidity ( jaw of steel ) after succinylcholine ( Sch ) administration during general anesthetic management for rigid bronchoscopic removal of a tracheal foreign body .
 Disease: masseter muscle rigidity; Disease: jaw of steel; Chemical: succinylcholine; Chemical: Sch
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: masseter muscle rigidity; Disease: jaw of steel; Chemical: succinylcholine; Chemical: Sch