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

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

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