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

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

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