Table 2.

Examples of preprocessed sentences and phrases.

Original text	Preprocessed text
a. Converting drug brand names to generic names
Cortril 5mg q.d.	hydrocortisone 5 mg qd
b. Section headers
Allergy: the patient has no known allergy.	allergy: the patient has no known allergy.
Family history Mother was diagnosed with breast cancer at age 57.	family history: family member was diagnosed with breast cancer at age 57.
c. Replacement with family members
His mother was diagnosed with breast ca. but hasn’t undergone treatment.	his family member was diagnosed with breast cancer but has not undergone treatment.