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

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

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