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

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

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