*SUPPORT*
IN: zup dax fep OUT: GREEN RED
IN: fep zup dax zup OUT: RED GREEN GREEN
IN: tufa zup blicket OUT: PINK GREEN PINK GREEN
IN: fep fep dax fep OUT: RED RED RED
IN: fep lug OUT: RED RED RED
IN: tufa wif dax zup OUT: PINK BLUE GREEN
IN: fep fep fep blicket OUT: RED RED RED RED RED RED
IN: fep dax zup OUT: RED GREEN
IN: wif blicket OUT: BLUE BLUE
IN: tufa OUT: PINK
IN: zup dax tufa blicket OUT: GREEN PINK GREEN PINK
IN: wif OUT: BLUE
IN: fep OUT: RED
IN: fep dax zup blicket OUT: RED GREEN RED GREEN

*QUERY*
IN: tufa blicket OUT: PINK PINK
IN: zup lug OUT: GREEN GREEN GREEN
IN: wif lug blicket OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: zup OUT: GREEN
IN: zup dax tufa OUT: GREEN PINK
IN: zup dax zup OUT: GREEN GREEN
IN: zup zup dax zup blicket OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: fep blicket blicket OUT: RED RED RED RED
IN: fep fep zup OUT: RED RED GREEN
IN: wif dax zup lug OUT: BLUE GREEN BLUE GREEN BLUE GREEN

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