Was Carl_Sagan spouse Carl Woese and Linda Salzman Sagan ?
ASK WHERE { wd:Q410 wdt:P26 wd:Q310067 . wd:Q410 wdt:P26 wd:Q4526447 }
carl sagan: Q410 carl woese: Q310067 carl sagan: Q410 linda salzman sagan: Q4526447