and they just put instructors out there and you you sign up for instruction and they just give you an arm band and if you see an instructor who's not doing anything you just tap him on the shoulder and ask him questions and they'll show you things
( and ( they ( just ( ( ( put instructors ) ( out ( ( there and ) you ) ) ) ( ( ( ( ( you ( ( sign up ) ( for instruction ) ) ) and ) ( they ( just ( ( give you ) ( an ( arm band ) ) ) ) ) ) and ) ( if ( you ( see ( ( an instructor ) ( who ( ( 's not ) ( doing ( anything ( ( ( you ( just ( ( ( ( tap him ) ( on ( the shoulder ) ) ) and ) ( ask ( him questions ) ) ) ) ) and ) ( they ( 'll ( show ( you things ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) )
(ROOT (PRN (CC and) (S (NP (PRP they)) (VP (ADVP (RB just)) (VBD put) (NP (NNS instructors)) (PP (IN out) (NP (NP (RB there)) (CC and) (NP (PRP you)))) (SBAR (SBAR (S (S (NP (PRP you)) (VP (VB sign) (PRT (RP up)) (PP (IN for) (NP (NN instruction))))) (CC and) (S (NP (PRP they)) (ADVP (RB just)) (VP (VBP give) (NP (PRP you)) (NP (DT an) (NN arm) (NN band)))))) (CC and) (SBAR (IN if) (S (NP (PRP you)) (VP (VBP see) (NP (NP (DT an) (NN instructor)) (SBAR (WHNP (WP who)) (S (VP (VBZ 's) (RB not) (VP (VBG doing) (NP (NP (NN anything)) (SBAR (S (S (NP (PRP you)) (ADVP (RB just)) (VP (VP (VB tap) (NP (PRP him)) (PP (IN on) (NP (DT the) (NN shoulder)))) (CC and) (VP (VB ask) (S (NP (PRP him)) (NP (NNS questions)))))) (CC and) (S (NP (PRP they)) (VP (MD 'll) (VP (VB show) (S (NP (PRP you)) (NP (NNS things))))))))))))))))))))))
There are no instructors on the floor. 
( There ( ( are ( ( no instructors ) ( on ( the floor ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (DT no) (NNS instructors)) (PP (IN on) (NP (DT the) (NN floor))))) (. .)))