Data on Paul Graham:
- Freebase: http://www.freebase.com/m/017cm9
- Wikidata: https://tools.wmflabs.org/reasonator/?&q=92650
Data on San Francisco:
- Freebase: http://www.freebase.com/m/0d6lp
- Wikidata: https://tools.wmflabs.org/reasonator/?&q=62
Data on Python:
- Freebase: http://www.freebase.com/m/05z1_
- Wikidata: https://tools.wmflabs.org/reasonator/?&q=28865
Data on APOE / Apolipoprotein E:
- Freebase: http://www.freebase.com/m/0byv2v
- Wikidata: https://tools.wmflabs.org/reasonator/?&q=14890468 (APOE), https://tools.wmflabs.org/reasonator/?&q=424728 (Apolipoprotein E)