E3 = 1
E2 = 0
E4 = -4
D3 = 2
B2 = 2
B3 = 1
C2 = 2
C3 = 0
D2 = 1
D4 = 0
B4 = 1
C4 = 1
F2 = -3
F3 = 0
F4 = 1
LGS: {{B2, C2, D2, E2, F2}, {B3, C3, D3, E3, F3}, {B4, C4, D4, E4, F4}}
rrefLGS = ReducedRowEchelonForm(LGS)
LGSZ1 = Element(LGS, 1)
LGSZ2 = Element(LGS, 2)
TZ0: {"r", "s", "u", "v"}
rrefLGSZ1 = Element(rrefLGS, 1)
rrefLGSZ2 = Element(rrefLGS, 2)
LGSZ3 = Element(LGS, 3)
rrefLGSZ3 = Element(rrefLGS, 3)
Text2 = TableText({TZ0, LGSZ1, LGSZ2, LGSZ3}, "|000010_010000r")
Text1 = TableText({TZ0, rrefLGSZ1, rrefLGSZ2, rrefLGSZ3}, "|000010_010000r")