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

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

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