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

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

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