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

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

*GRAMMAR*
fep -> BLUE 
 zup -> GREEN 
 wif -> YELLOW 
 kiki -> PURPLE 
 u1 tufa u2 -> [u2] [u1] [u1] [u1] 
 x1 gazzer u1 -> [u1] [x1] 
 u1 blicket -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 