9093
We also demonstrate that the substrate surface electrons , which can be confined by cobalt - phthalocyanine molecules , can propagate along the step arrays and can hybridize with the molecular orbitals .
 Chemical: cobalt; Chemical: phthalocyanine
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: cobalt; Chemical: phthalocyanine