question: What do historians and researches argue about concerning the emotional and affectionate activities ?
answer: activities associated with sexual-orientation terms such as `` gay '' and `` heterosexual '' change significantly over time and across cultural boundaries .
turker_answer: Historians and researches argue about concerning the emotional and affectionate activities about activities associated with sexual-orientation terms such as `` gay '' and `` heterosexual '' change significantly over time and across cultural boundaries .
rule-based: Historians and researches argue activities associated with sexual-orientation terms such as `` gay '' and `` heterosexual '' change significantly over time and across cultural boundaries about concerning the emotional and affectionate activities .