209583
Early years : as the British Rubber Producers Research Association : 1938 to 1957 The British Rubber Producers Research Association was formed as a scientific research organization in 1938 ' to understand rubber and in pursuit of this aim to mount a programme of fundamental research ' , since at that time the technology was almost entirely empirical .
 organization: Rubber; organization: Research; organization: Rubber; organization: Research
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Rubber, Research, Rubber, Research 
Answer:
 organization: Rubber; organization: Research; organization: Rubber; organization: Research