generate questions: In 1899, John Jacob Astor IV invested $100,000 for Tesla to further develop and produce a new lighting system. Instead, Tesla used the money to fund his Colorado Springs experiments.
How much money did John Jacob Astor IV provide Tesla with? {sep_token} What did Astor expect the money be used for? {sep_token} What did Tesla spend Astor's money on? {sep_token} When did Astor provide the money? {sep_token}