Assertion: antibiotic | /r/HasProperty | discovered
Facets:
Source sentences:
text: It wasn't until 1928 that the very first antibiotic was discovered -- accidentally, at that -- when researcher Alexander Fleming came back to work after a weekend away from his lab and found a certain type of mold, Penicillium notatum, had halted the growth of Staphylococcus (staph -- a bacteria that can cause skin infections, pneumonia and some food-borne illness, among other infections) in his petri dishes.