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

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

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