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

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

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