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

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

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