18861
The basic structural motif is composed of 2D acetato - benzimidazolato - zinc layers of tetrahedrally coordinated zinc joined together by anionic acetate and benzimidazolate ligands .
 Chemical: acetato - benzimidazolato - zinc; Chemical: zinc; Chemical: acetate; Chemical: benzimidazolate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: acetato - benzimidazolato - zinc; Chemical: zinc; Chemical: acetate; Chemical: benzimidazolate