Split Time , Same Direction ( also referred to as Split Time and abbreviated SS ) : Props are spinning in the same direction and 180 degrees out of phase with each other so that the trick they produce appears to reflect along a line of symmetry that rotates from the center of the trick .
PROPN PROPN , PROPN PROPN ( ADV VERB ADP ADP PROPN PROPN CCONJ VERB PROPN ) : NOUN AUX VERB ADP DET ADJ NOUN CCONJ NUM NOUN SCONJ ADP NOUN ADP DET ADJ SCONJ SCONJ DET NOUN PRON VERB VERB PART VERB ADP DET NOUN ADP NOUN DET VERB ADP DET NOUN ADP DET NOUN .