334071
Among its contributors over the years were the scientists Kliment Timiryazev , Ivan Sechenov , and Ilya Mechnikov ; the historians Sergey Solovyov , Konstantin Kavelin , and Tadeusz Zielinski ; the literary scholars Alexander Veselovsky and Alexander Pypin ; and the writers Ivan Turgenev , Ivan Goncharov , Aleksandr Ostrovsky , Grigory Danilevsky , and Vladimir Solovyov , among many others .
 Kliment Timiryazev, Ivan Sechenov, Ilya Mechnikov, Sergey Solovyov, Konstantin Kavelin, Tadeusz Zielinski, Alexander Veselovsky, Alexander, Ivan Turgenev, Ivan Goncharov, Aleksandr Ostrovsky, Grigory Danilevsky, Vladimir Solovyov
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kliment Timiryazev, Ivan Sechenov, Ilya Mechnikov, Sergey Solovyov, Konstantin Kavelin, Tadeusz Zielinski, Alexander Veselovsky, Alexander, Ivan Turgenev, Ivan Goncharov, Aleksandr Ostrovsky, Grigory Danilevsky, Vladimir Solovyov