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

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

*GRAMMAR*
blicket -> GREEN 
 kiki -> RED 
 wif -> PINK 
 fep -> YELLOW 
 u1 dax u2 -> [u2] [u1] 
 x1 lug u1 -> [x1] [u1] 
 x1 tufa u1 -> [x1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 