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

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

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