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

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

*GRAMMAR*
gazzer -> YELLOW 
 dax -> GREEN 
 wif -> PINK 
 lug -> RED 
 u1 kiki -> [u1] [u1] [u1] [u1] 
 u1 tufa x1 -> [x1] [x1] [u1] [u1] 
 x1 zup x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 