data sasuser.qiang_pom3;
set sasuser.qiang_pom2;
keep hotel_id customer_id review_date review_rate_hotel review_rate_cleanreview_rate_service
review_rate_surrounding review_rate_facility review_has_responsehotel_customer_id
response_author response_author_rating lag_response_authorlag_response_author_rating lag_response_author_rating2
lag_after_response;
run;



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