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

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

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