I have millions of lines of statements containing both subjective(like I prefer the red skirt) and objective(Washington was born on February 22, 1732) statements or opinions. How can I separate them? Not manually. By objective, I mean if the object or predicative of the sentence changed it would be in conflict with the truth. For illustration, She prefer red skirt. if we change red or skirt, the (new) statement would remain right, which can not apply to statements like Washington was born on February 22, 2016.The statements which should be pushed out:1. Washington was born on February 22, 17322. Washington was born on February 21, 17313. Obama was born on February 22, 17324. Nobody A was born on February 22, 20165. Red is blue6. Color is a day7. I'm a robot8. You are a person        Statements which should be kept:1. I like coffee2. Red is my favorite color3. I hate him4. You are awesome5. You are clever6. I was born years ago7. You are very old8. Tomorrow will be better    
Any method to filter out objective statements(or say facts)?
classification;data cleaning