*SUPPORT*
IN: gazzer fep OUT: PURPLE PURPLE PURPLE
IN: wif OUT: RED
IN: wif lug zup gazzer gazzer lug OUT: RED RED PURPLE PURPLE PURPLE RED RED
IN: gazzer OUT: PURPLE
IN: gazzer dax zup wif OUT: PURPLE GREEN RED PURPLE GREEN
IN: tufa OUT: BLUE
IN: wif fep OUT: RED RED RED
IN: gazzer lug OUT: PURPLE PURPLE
IN: dax tufa lug OUT: GREEN BLUE BLUE
IN: tufa lug OUT: BLUE BLUE
IN: dax fep OUT: GREEN GREEN GREEN
IN: wif gazzer gazzer OUT: RED PURPLE PURPLE
IN: tufa zup dax tufa fep OUT: BLUE GREEN BLUE BLUE BLUE BLUE
IN: gazzer gazzer wif fep OUT: PURPLE PURPLE RED RED RED

*QUERY*
IN: dax OUT: GREEN
IN: wif wif gazzer fep OUT: RED RED PURPLE PURPLE PURPLE
IN: tufa fep OUT: BLUE BLUE BLUE
IN: wif lug OUT: RED RED
IN: wif dax OUT: RED GREEN
IN: dax wif fep OUT: GREEN RED RED RED
IN: dax lug OUT: GREEN GREEN
IN: tufa dax OUT: BLUE GREEN
IN: tufa lug zup dax OUT: BLUE BLUE GREEN BLUE BLUE
IN: dax wif lug OUT: GREEN RED RED

*GRAMMAR*
tufa -> BLUE 
 wif -> RED 
 dax -> GREEN 
 gazzer -> PURPLE 
 x1 zup x2 -> [x1] [x2] [x1] 
 u1 lug -> [u1] [u1] 
 u1 fep -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 