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

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

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