[lemma=and] [tag=VBN] [lemma=to | lemma=permission] □
[lemma=and] [tag=VBN] [lemma=to | lemma=permission] [□]
[lemma=and] [tag=VBN] [lemma=to | lemma=permission] □+
These simple devices consist of black water piping sandwiched between glass plates , and insulated to accumulate as much heat as possible . The carpet sections can be detached and removed to convert the underlying area into a dance floor . Whereas many pre-packaged instructional tools are developed and marketed to reach students with similar backgrounds and experiences , they may have little relevance for distant learners who come to the course with widely varied and non-traditional experiential backgrounds . Existing wastewater treatment plants should be expanded and upgraded to handle larger volumes of wastewater , and attention should be placed on wastewater treatment for disposal purposes . They are quite different in features from the Chinese , bony in contour and muscular , rude in manners , and given to drink .