9203
Many observers claimed to have determined such parallaxes , but Tycho Brahe and Giovanni Battista Riccioli concluded that they existed only in the minds of the observers , and were due to instrumental and personal errors .
 person: Tycho Brahe; person: Giovanni Battista Riccioli
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: Tycho Brahe, Giovanni Battista Riccioli 
Answer:
 person: Tycho Brahe; person: Giovanni Battista Riccioli