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

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

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