2293
Putrescine was abundantly produced by exogenous L - ornithine ( L - Orn ) , and both spermidine and spermine were significantly accumulated in D - ornithine ( D - Orn ) - supplied tobacco cells .
 Chemical: Putrescine; Chemical: L - ornithine; Chemical: L - Orn; Chemical: spermidine; Chemical: spermine; Chemical: D - ornithine; Chemical: D - Orn
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: Putrescine; Chemical: L - ornithine; Chemical: L - Orn; Chemical: spermidine; Chemical: spermine; Chemical: D - ornithine; Chemical: D - Orn