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

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

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