question: What did Whitehead state are the two types of perception ?
answer: causal efficacy ( or `` physical prehension '' ) and presentational immediacy ( or `` conceptual prehension '' )
turker_answer: Whitehead stated that the two types of perception are causal efficacy ( or `` physical prehension '' ) and presentational immediacy ( or `` conceptual prehension '' ) .
rule-based: Whitehead state are the two types causal efficacy ( or `` physical prehension '' ) and presentational immediacy ( or `` conceptual prehension '' of perception .