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

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

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