[lemma=","] ([tag=NNS] | [tag=RB] □)?
[lemma=","] ([tag=NNS] | [tag=RB] [□])?
[lemma=","] ([tag=NNS] | [tag=RB] □+)?
At low volume , cars move more or less independently , achieve a preferred speed , and change lanes as required . " To study the laws of history we must completely change the subject of our observation , must leave aside kings , ministers , and generals , and study the common , infinitesimally small elements by which the masses are moved , " Tolstoy wrote in War and Peace . Simply by manipulating air pressure and muscle tension in its vocal organ , or syrinx , a canary can generate an amazingly varied repertoire of trills , warbles , and other melodic syllables . Herbs , vitamins and minerals . To make the experience more comfortable , dentists several ago began offering things like television and headphones .