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spec: By means of speech acts , a group of people who have different areas of expertise can cooperate and dynamically reconfigure their social interactions to perform tasks and solve problems that would be difficult or impossible for any single individual . The reason why the percentage of private schools are higher than the percentage of pupils in private schools is that the private primary and lower secondary schools on the average have a lower number of pupils than the public schools . `` Teevens was on a soccer field in Florida Tuesday when her mom , Kirsten , bearing a wide smile , held up a Stanford T-shirt . Additionally , the fact that OPEC currently sets the value of a barrel of oil in dollars certainly helps the hegemony of the dollar . ' That was not okay . In the survey , 28 percent said they sent or received music or video files via e-mail or IM , meaning about 10 million American adults are currently swapping files that way . And , you know , things have moved on over the years , and we've taken the opportunity to upgrade it in almost every respect . Generally , a talk tube is considered one play component . He does not shrink from occasional violence and he does not jump to easy conclusions . `` Then one day , he completely transformed into a behavior issue . As explained , incendiary and low-explosive bombs do not require detonators to be ignited and may be set off by a spark or flash . This could , in some other circumstances , and if Bulgaria would have some other possibilities and abilities , result in some additional dangers for Macedonia . `` Carbon dioxide and other greenhouse gases contribute to global warming , which may have undesirable environmental effects . If you look at that chart there , you see that when it came to testing the Firestone tires , 85 percent of the tires you tested were old tires ; then you went over to do similar rig testing on the Goodyears . Courses are free , but attendees must pay their own travel and lodging expenses . And there 's more , probably the clearest demonstration yet that this is a problem with the tires and not with the vehicle ; and this is the real-world performance of two groups of Explorers totaling more than 1 million vehicles manufactured over a 3-year period . Do you have any problem in testifying under oath ? That one the staff is just putting up will show that the General Grabber AT tire , based upon the information you gave us , has a higher rating than the Wilderness AT ; and that the Wilderness AT , relative to the General GS 60 and the other tires , is , you know , a little higher . So I guess I am trying to understand if that is a catastrophic thing that we ca n't plan for , or deal with ; or is it something that if it occurs , you ought to a be able to drive to the shoulder of the road and not die . We promised our customers and all of you that we would use the lessons learned , combined with the aid of new technology , to keep our customers safe ; and Ford Motor Company supported passage of the TREAD Act , which in many ways encouraged the very same vigilence .