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Born in Weissenfels in the Kingdom of Saxony in 1735, Rudolf Ritter von Otto joined the Saxon army in 1753 as a cavalryman. In the Seven Years War he fought at the battles of Kolin and the Breslau in 1757. He was also present at several sieges and skirmishes. He joined an Austrian Freikorps raised by his brother Wilhelm and participated in several successful ambushes and raids in 1760-1762.
 place of birth: Rudolf Ritter von Otto, Kingdom of Saxony
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 place of birth: Rudolf Ritter von Otto, Kingdom of Saxony