*SUPPORT*
IN: fep zup fep OUT: YELLOW YELLOW
IN: tufa dax OUT: GREEN GREEN
IN: fep OUT: YELLOW
IN: gazzer wif dax zup fep zup wif OUT: PURPLE RED RED YELLOW RED
IN: fep dax zup gazzer zup gazzer OUT: YELLOW YELLOW PURPLE PURPLE
IN: gazzer tufa kiki wif OUT: PURPLE GREEN RED
IN: gazzer kiki gazzer zup wif OUT: PURPLE PURPLE RED
IN: gazzer dax OUT: PURPLE PURPLE
IN: wif OUT: RED
IN: wif kiki tufa zup tufa OUT: RED GREEN GREEN
IN: tufa fep OUT: GREEN YELLOW
IN: gazzer kiki wif zup wif OUT: PURPLE RED RED
IN: fep fep wif fep kiki fep zup tufa OUT: YELLOW YELLOW RED YELLOW YELLOW GREEN
IN: wif wif zup wif OUT: RED RED RED

*QUERY*
IN: gazzer tufa fep dax OUT: PURPLE GREEN YELLOW YELLOW
IN: fep wif dax OUT: YELLOW RED RED
IN: fep dax OUT: YELLOW YELLOW
IN: wif dax OUT: RED RED
IN: gazzer OUT: PURPLE
IN: gazzer wif dax OUT: PURPLE RED RED
IN: gazzer kiki gazzer OUT: PURPLE PURPLE
IN: tufa OUT: GREEN
IN: tufa kiki gazzer zup fep OUT: GREEN PURPLE YELLOW
IN: wif zup wif OUT: RED RED

*GRAMMAR*
tufa -> GREEN 
 fep -> YELLOW 
 wif -> RED 
 gazzer -> PURPLE 
 u1 kiki u2 -> [u1] [u2] 
 x1 zup u1 -> [x1] [u1] 
 u1 dax -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 