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

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

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