5171
Previous work from our lab has demonstrated that in female rats fed dietary supplements containing high - intensity sweeteners that may disrupt a predictive relation between sweet tastes and calories , excess weight gain is demonstrated only when females are also fed a diet high in fat and sugar , and is evidenced primarily in animals already prone to gain excess weight .
 Chemical: sugar
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: sugar 
Answer:
 Chemical: sugar