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

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

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