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

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

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