27019
Upon immersion of paw , equal volume of fluid displaced applies a force F , which shows specific and proportional increment in the level of fluid in both the columns , which could then be detected by weighing balance , as ' Force = Weight ' of displaced fluid , using the specific gravity of the fluid and the volume of paw , and thus the change in the volume of paw can be calculated .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None