*SUPPORT*
IN: fep tufa fep zup blicket wif OUT: BLUE RED BLUE GREEN YELLOW
IN: wif blicket zup kiki zup dax OUT: YELLOW GREEN YELLOW YELLOW
IN: zup OUT: YELLOW
IN: tufa OUT: RED
IN: wif blicket fep OUT: BLUE GREEN
IN: tufa zup blicket tufa OUT: RED RED YELLOW
IN: fep blicket fep OUT: BLUE BLUE
IN: fep dax OUT: BLUE BLUE
IN: tufa zup blicket wif OUT: RED GREEN YELLOW
IN: fep wif blicket zup OUT: BLUE YELLOW GREEN
IN: wif OUT: GREEN
IN: tufa blicket tufa OUT: RED RED
IN: wif blicket zup OUT: YELLOW GREEN
IN: tufa blicket fep OUT: BLUE RED

*QUERY*
IN: zup kiki fep dax kiki wif OUT: YELLOW BLUE BLUE GREEN
IN: wif blicket wif OUT: GREEN GREEN
IN: tufa blicket zup kiki tufa dax OUT: YELLOW RED RED RED
IN: tufa dax OUT: RED RED
IN: fep blicket zup kiki tufa dax OUT: YELLOW BLUE RED RED
IN: zup dax OUT: YELLOW YELLOW
IN: fep OUT: BLUE
IN: fep dax kiki tufa OUT: BLUE BLUE RED
IN: wif blicket tufa OUT: RED GREEN
IN: fep blicket wif OUT: GREEN BLUE

*GRAMMAR*
wif -> GREEN 
 zup -> YELLOW 
 tufa -> RED 
 fep -> BLUE 
 u1 dax -> [u1] [u1] 
 u1 blicket u2 -> [u2] [u1] 
 x1 kiki x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 