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

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

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