Table 5:

Error analysis performed on on the multi-corpus test dataset. Bold text represent gold standard annotations while italicized text represent predicted spans of text.

Sentence	Error	Category
I just woke up from a long 13 hour nap. Thank you Fluoxetine.	False Negative	Classifier Error
I just spent 85 dollars on allergy meds. Bought 2 of everything.	False Negative	Classifier Error
I have been on this drug for years. I was on 75 mg 1x a day and now 2x a day. I really didn’t have any bad side effects.	False Positive	Classifier Error
In older men impotence has a physical cause, such as disease, injury, or side effects of drugs	False Positive	Extractor Error
today was ment to be my chill day and my stress levels are once again through the roof	False Positive	Extractor Error
Yesterday’s trivia answer is that Pasteur was an expert in treating and preventing rabies, an often fatal disease.	False Negative	Extractor Error Possible Annotation Error
I gotta feeling that imma throw up tonight. not feeling bad but I keep burping and vomit keeps coming up everytime.	Partial False Positive
How nervous was she performing for music? That was like a blackout experience.	False Negative	Extractor Error
I still have the same eighty years old feeling and do not know that i will ever be normal again.	False Negative	Extractor Error
I too am very tired lately and never feel rested upon awakening.	Partial False Positive	Extractor Error
My mind is more important than any drug	False Positive	Extractor Error