Which of the following term is used when a search engine

Statements:

A < R ≤ M =S; U > L = T; A < L = O > E

Conclusions:

I).  U > E

II).  L > M

Statements: H @ B, B * E, V © E, W $ V

Statements: L ≥ R, U ≤  N, N < M > I

Conclusion:

I. R > I

II. M ≥ U

Statements: U = V ≤ W > Q ≥ N; B < Q; E = W

Conclusion: I. E > Q II. W > B

Statements: W > V > U, Y ≥ T < U, Y ≤ X ≤ Z

Conclusions:

I. W > Y

II. V > T

III. Z ≥ U

Statements: R > N > Z < O = I ≥ T < W < S ≤  L

Conclusion

I: L > Z

II: O > T

Statements: T > S > R, L ≥ D < R, L ≤ O ≤ Z

Conclusions:

I. T > L

II. S > D

III. Z ≥ R

Statements:          X@W,   W#U,     U$Q,     Q@R

Conclusions :         

I. Q % W