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

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

*GRAMMAR*
lug -> PINK 
 wif -> GREEN 
 fep -> PURPLE 
 kiki -> RED 
 u1 zup u2 -> [u2] [u1] 
 u1 tufa x1 -> [u1] [x1] [x1] 
 u1 dax u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 