certain power certain practices certain precautionary measures certain precautions certain precision certain preconditions certain predetermined certain preferences certain prejudices certain premises certain preparations certain prerequisites certain prerogatives certain prescription certain pressure certain preventative measures certain price certain priest certain principles certain priorities certain priority certain prisoners certain privacy certain private certain privileges certain probability certain problems relating certain problems certain procedures certain proceedings certain processes certain processing certain producers certain production processes certain production certain products can certain products may certain products of animal origin certain products originating to certain products certain product certain professions certain professor certain profile certain profit certain programmes certain programs certain progress certain prohibitions certain projects certain promises certain promotions certain proof certain properties certain property certain proportion certain proposals certain protection certain protective measures certain proteins certain protocols certain providers certain provinces certain provisions concerning certain provisions of regulation certain provisions of the agreement certain provisions of the convention certain provisions of the directive certain provisions of the treaty certain provisions of this directive certain provisions relating certain provisions certain psychological certain public services certain publications certain public certain purchases certain purposes certain qualifications certain qualities certain quality certain quantities certain quantity certain quarters certain questions certain quota certain races certain radius certain range certain rank certain rare certain rate certain ratio certain raw materials certain reaction certain realities certain reasons certain recent certain receptors certain recipients certain recommendations certain records certain reduction certain references certain reforms certain regimes certain regional certain regions of the community certain regions of the world to certain regions certain regularity certain regulations certain related rights certain related certain relationship certain relief certain religions certain religious certain reluctance certain remarks certain remedies certain replies certain reports certain representatives certain reputation certain requests certain requirements are met to certain requirements certain requirements certain researchers certain research certain reservations certain reserve certain residues certain resistance certain resolutions certain resources certain respects certain responsibilities certain responsibility certain restrictions apply certain restrictions certain restrictive measures certain results certain retailers certain return certain rewards certain rhythm certain rights in relation certain rights certain rigidity certain risk factors certain risks certain risk certain rites certain rituals certain roads certain rocks certain role certain rooms certain routes certain rules of conduct certain rules to certain rules certain rural areas certain sacrifices certain sadness certain safeguards certain safety certain sanctions certain satisfaction certain scale certain scenarios certain scenes certain scents certain schedule certain schemes certain schools certain scientists certain scope certain score certain search certain seasons certain secrets certain sections of the population certain sections of the site certain sections certain sectors of industry certain sectors of society certain sectors of the economy to certain sectors certain security certain seeds certain segments certain selected certain selection certain sense certain sensitive areas certain sensitive issues certain sensitive products