20530
IPNS thus converts the homologated tripeptides delta - ( L - alpha - aminoadipoyl ) - L - homocysteinyl - D - valine ( AhCV ) and delta - ( L - alpha - aminoadipoyl ) - L - homocysteinyl - D - allylglycine ( AhCaG ) into monocyclic hydroxy - lactam products ; this suggests that the additional methylene unit in these substrates induces conformational changes that preclude second ring closure after initial lactam formation .
 Chemical: delta - ( L - alpha - aminoadipoyl ) - L - homocysteinyl - D - valine; Chemical: AhCV; Chemical: delta - ( L - alpha - aminoadipoyl ) - L - homocysteinyl - D - allylglycine; Chemical: AhCaG; Chemical: monocyclic hydroxy - lactam; Chemical: methylene; Chemical: lactam
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: delta - ( L - alpha - aminoadipoyl ) - L - homocysteinyl - D - valine, AhCV, delta - ( L - alpha - aminoadipoyl ) - L - homocysteinyl - D - allylglycine, AhCaG, monocyclic hydroxy - lactam, methylene, lactam 
Answer:
 Chemical: delta - ( L - alpha - aminoadipoyl ) - L - homocysteinyl - D - valine; Chemical: AhCV; Chemical: delta - ( L - alpha - aminoadipoyl ) - L - homocysteinyl - D - allylglycine; Chemical: AhCaG; Chemical: monocyclic hydroxy - lactam; Chemical: methylene; Chemical: lactam