9432
In this context , the present study aimed to assess the toxicity of glyphosate , its by - product , aminomethylphosphonic acid ( AMPA ) and two commercial formulations , Roundup Express ( (R) ) ( R ( EX ) ) and Roundup All e es et Terrasses ( (R) ) ( R ( AT ) ) , containing glyphosate as the active ingredient , on the early life stages of the Pacific oyster , Crassostrea gigas .
 Chemical: glyphosate; Chemical: aminomethylphosphonic acid; Chemical: AMPA; Chemical: glyphosate
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: glyphosate; Chemical: aminomethylphosphonic acid; Chemical: AMPA; Chemical: glyphosate