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

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

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