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

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

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