question: How can obstruction be employed ?
answer: motions to adjourn , appeals of the presiding officer 's ruling , or numerous requests for roll call votes
turker_answer: Obstruction can be employed by motions to adjourn , appeals of the presiding officer 's ruling , or numerous requests for roll call votes .
rule-based: Obstruction can be employed by motions to adjourn , appeals of the presiding officer 's ruling , or numerous requests for roll call votes .