*SUPPORT*
IN: fep fep OUT: YELLOW YELLOW
IN: zup kiki OUT: RED PURPLE
IN: kiki kiki wif wif tufa wif tufa kiki OUT: PURPLE GREEN PURPLE PURPLE GREEN GREEN
IN: kiki OUT: PURPLE
IN: wif blicket OUT: GREEN GREEN
IN: fep tufa kiki OUT: PURPLE YELLOW
IN: kiki gazzer OUT: PURPLE PURPLE
IN: wif tufa wif OUT: GREEN GREEN
IN: zup OUT: RED
IN: wif OUT: GREEN
IN: wif fep tufa kiki OUT: PURPLE GREEN YELLOW
IN: zup blicket gazzer gazzer OUT: RED RED RED RED RED RED RED RED
IN: kiki fep blicket gazzer OUT: PURPLE YELLOW YELLOW PURPLE YELLOW YELLOW
IN: wif wif blicket tufa wif OUT: GREEN GREEN GREEN GREEN

*QUERY*
IN: wif zup kiki wif tufa zup tufa fep OUT: YELLOW RED GREEN RED PURPLE GREEN
IN: fep OUT: YELLOW
IN: zup blicket OUT: RED RED
IN: kiki blicket tufa kiki gazzer OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: fep fep tufa zup tufa zup OUT: RED RED YELLOW YELLOW
IN: fep wif gazzer OUT: YELLOW GREEN YELLOW GREEN
IN: wif wif blicket tufa wif gazzer OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: zup blicket tufa kiki OUT: PURPLE RED RED
IN: zup gazzer gazzer OUT: RED RED RED RED
IN: zup wif blicket OUT: RED GREEN GREEN

*GRAMMAR*
wif -> GREEN 
 fep -> YELLOW 
 kiki -> PURPLE 
 zup -> RED 
 x1 tufa u1 -> [u1] [x1] 
 x1 gazzer -> [x1] [x1] 
 u1 blicket -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 