Assertion: kava's use | /r/HasAspect | additive sedative effects
Facets:
Source sentences:
text: It has been reported that combined use of alcohol and kava extract can have additive sedative effects.   
text: It has been reported that combined use of alcohol and kava extract can have additive sedative effects.   
text: It has been reported that combined use of alcohol and kava extract can have additive sedative effects.