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

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

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