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

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

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