Table 2.

Some example themes that were obtained from the first round of biterm topic model (BTM).

Example theme	Word groupings
Example theme—1	fentanyl, deaths, dangers, nations, drugs, china, learn, surge, deals
Example theme—2	fentanyl, man, police, charges, faces, arrest, brockton, bust, Calgary
Example theme—3	fentanyl, overdose, suspected, teen, life, drugs, dead, death, Vancouver