OpenLLM-France/wikimedia huggingface dataset:
# English-Hanzi/Student

A student is a person that studies in a school.
学生 是 在 学校 学习 的 人。
# English-Hanzi/Steam

Steam is the gas state of H$_2$O.
水蒸气 是 H$_2$O 的 气体状态。
# English-Hanzi/Strength training

Strength training is a type of physical exercise specializing in the use of resistance to induce muscular contraction which builds the strength, anaerobic endurance, and size of skeletal muscles.
力量训练 是 一种 体育 锻炼，特别 利用 抵抗力 导致 肌肉 收缩，从而 增强 力量，无氧 耐力 和 骨骼肌 的 大小。
# English-Hanzi/Structure

Structure is the way that the parts of something are connected together.
结构 是 某事物 的 一些 部分 被 连接 在一起 的 方式。
# English-Hanzi/Stroke

Stroke is a disease that caused by a blood vessel is broken or blocked. It can cause death, or part of the body not working properly.
中风 是 由 血管 破裂 或 阻塞 引起 的 疾病。它可导致死亡，或部分身体不能正常工作。
# English-Hanzi/Stomach

Stomach is an organ that is used to digest food.
胃脏 是 用来 消化 食物 的 器官。
# English-Hanzi/Stool

Stool is the solid waste of the body.
大便 是 身体的 固体废物。
# English-Hanzi/Strawberry

Strawberry is a soft red fruit. It is a kind of berries. Its surface has a lot of very small seeds. It is a food rich in antioxidant.
草莓是一种柔软的红色水果。它是一种浆果。它的表面有很多非常小的种子。它是一种富含抗氧化剂的食物。
# English-Hanzi/String instrument

String instruments are musical instruments that produce sound from vibrating strings when the performer plays or sounds the strings in some manner.
弦乐器是乐器，当演奏者以某种方式演奏或发出弦乐时，它们会从振动琴弦产生声音。
# English-Hanzi/State (part of country)

A state is a province of a federal country.
一个 州 是 联邦 国家 的 一个 省份。
# Blackmar-Diemer Gambit (BDG) Accepted
### 2...dxe4

White has given up his king's pawn, in hopes of an aggressive game. Since there is no way White can win a pawn back immediately, he can expect this set-up most times he plays the Blackmar-Diemar Gambit. The best move for White would be Nc3, putting pressure on the e4-pawn and preparing the move f3, as 3. f3 is well met by 3...e5!, with an edge for Black. One example: 4. dxe5 (other moves are even worse, for example 4. fxe4 Qh4+ and Qxe4 with an extra pawn and an attack, or d5 Nf6 c4 c6 when d5 will soon fall) Qxd1+ Kxd1 Nc6 fxe4 (f4 Bg4+ Ne2 O-O-O+ with a winning attack) Nxe5 with an obvious advantage. Black normally plays 3...Nf6, though 3...f5 and 3...Bf5 are interesting ways to avoid mainline theory. Now, if f3 e5?, dxe5 gains a tempo on the knight. Sometimes Bc4 is played, to hopefully trap Black quickly with a variation of Scholar's Mate.

## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
1. d4 d5 2. e4 dxe4
| 3 | 4 | 5 |
| Nc3 Nf6 | f3 exf3 | Nxf3 | ⩱ |
When contributing to this Wikibook, please follow the Conventions for organization.

## References

* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
# Closed Game
## 2...Nf6
## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
    1.d4 d5 2.e3 Nf6
| | 3 |
| Queen's Pawn Game | Nf3 e6 | to 1...Nf6 2.Nf3 d5 3.e3 |
| | Bd3 c5 | |
When contributing to this Wikibook, please follow the Conventions for organization.
* Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
* Modern Chess Openings: MCO-14. 1999. Nick de Firmian, Walter Korn. ISBN 0-8129-3084-3.
* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
# Queen's Pawn Game
## 2...e6
## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
    1.d4 d5 2.e3 e6
| 3 |
| Nf3 | to 2.Nf3 e6 3.e3 |
| c4 | to 2.c4 e6 3.e3 |
When contributing to this Wikibook, please follow the Conventions for organization.
* Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
* Modern Chess Openings: MCO-14. 1999. Nick de Firmian, Walter Korn. ISBN 0-8129-3084-3.
* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
# Berg Countergambit

Not to be confused with the Borg Gambit.
The Berg Countergambit is a uncommon opening that can be played in the Smith-Morra Gambit (1. e4 c5 2. d4 d5) or the Blackmar-Diemer Gambit (1. d4 d5 2. e4 c5). The idea is to open the D file and quickly change the queens. White has to make the decision to capture the c5-pawn or the d5-pawn.
The main line is 3. dxc5 Nf6:
If white captures the d-pawn the queens are exchanged with 4 Qxd5 5. Qxd5 Nxd5.
If White advances the pawn to e5, the knight is advanced to e4 and the position is equal and dynamic.
The Scandinavian Variation is 3. exd5 Qxd5.
In this variation Black will be able to open the D file unless White plays Ne2 where Black has to return the queen to d8 and White gets a slight advantage in development.

## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
    1. e4 c5 2. d4 d5
    1. d4 d5 2. e4 c5
| | 3 | 4 | 5 | 6 |
| Berg Countergambit | dxc5 Nf6 | exd5 Qxd5 | Qxd5 Nxd5 | Nf3 d6 |
When contributing to this Wikibook, please follow the Conventions for organization.

## References

* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
# Blackmar-Diemer Gambit (BDG)
### 3...Nc6

This is the most common and best response. White will mainly continue with Qh5.
# Closed Game
## 2. e3
## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
    1.d4 d5 2.e3
| | 2 |
| Queen's Pawn Game | ... Nf6 | Nf3 |
| | ... e6 | Nf3 |
When contributing to this Wikibook, please follow the Conventions for organization.
* Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
* Modern Chess Openings: MCO-14. 1999. Nick de Firmian, Walter Korn. ISBN 0-8129-3084-3.
* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
# Blackmar-Diemer Gambit 2. e4
### 2. e4

White offers their e4 pawn in exchange for quick development and open lines. At the professional level this move is considered somewhat suspect, but Black must be careful if they choose to take the pawn as there are many traps in this opening. 2 ...dxe4, accepting the pawn, is the Blackmar-Diemer Gambit. Black has three ways to decline the gambit.
* e6 transposes to the French Defence
* c6 transposes to the Caro-Kann Defence
* Nc6 transposes to the Nimzowitsch Defence
* c5 is a largely unexplored countergambit.

## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
1. d4 d5 2. e4
| | 2 | 3 |
| | ... dxe4 | Nc3 e5 | = |
| French Defence (by transposition) | ... e6 | = |
| Caro-Kann Defence (by transposition) | ... c6 | = |
| Nimzowitsch Defence (by transposition) | ... Nc6 | = |
| | ... c5 | = |
When contributing to this Wikibook, please follow the Conventions for organization.

## References

* Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
* Modern Chess Openings: MCO-14. 1999. Nick de Firmian, Walter Korn. ISBN 0-8129-3084-3.
# Blackmar-Diemer Gambit (BDG)
### 4. Qh5

White threatens to win a queen by checking on f7. Black should play g6 to stop the threat. However, if he, in his hotheaded desire plays Nf6??, Black faces doom with Qxf7+ Kd7 Be6+ Kd6 Bf4+ Ne5 Bxe5+ Kc6 Nc3 Bxe6 Qxe6+ Qd6 Bxd6.
# Blackmar-Diemer Gambit (BDG)
### 3. Nc3

White has brought his minor piece into action and taken control of the middle. Simultaneously, he has put pressure on Black's e4-pawn, which Black must now try and defend. Nf6 or Bf5 would most commonly be used to defend the lone pawn, while e5 gives the option of a pawn transfer.

## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
1. d4 d5 2. e4 dxe4 3. Nc3
| | 3 | 4 | 5 | 6 | 7 |
| Main line | ... Nf6 | f3 exf3 | Nxf3 g6 | Bc4 Bg7 | O-O O-O | ⩱ |
| Lemberger Countergambit | ... e5 | dxe5 Qxd1+ | Kxd1 Nc6 | Nxe4 Nxe5 | = |
| Zeller Defense | ... Bf5 | f3 – | = |
When contributing to this Wikibook, please follow the Conventions for organization.

## References

* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
# Blackmar-Diemer Gambit (BDG)
### 3. Bc4

This move develops the bishop to its most active square. The most common response is Nc6.
# FCC Technician Class Exam Study Guide - 2014-2018/Subelement T3 Group B

Radio and electromagnetic wave properties: the electromagnetic spectrum; wavelength vs. frequency; velocity of electromagnetic waves; calculating wavelength

## The Question Pool
### Question 1
#### What is the name for the distance a radio wave travels during one complete cycle?

    A. Wave speed
    B. Waveform
    C. Wavelength
    D. Wave spread
The correct answer is C.

### Question 2
#### What property of a radio wave is used to describe its polarization?

    A. The orientation of the electric field
    B. The orientation of the magnetic field
    C. The ratio of the energy in the magnetic field to the energy in the electric field
    D. The ratio of the velocity to the wavelength
The correct answer is A.

### Question 3
#### What are the two components of a radio wave?

    A. AC and DC
    B. Voltage and current
    C. Electric and magnetic fields
    D. Ionizing and non-ionizing radiation
The correct answer is C.

### Question 4
#### How fast does a radio wave travel through free space?

    A. At the speed of light
    B. At the speed of sound
    C. Its speed is inversely proportional to its wavelength
    D. Its speed increases as the frequency increases
The correct answer is A.

### Question 5
#### How does the wavelength of a radio wave relate to its frequency?

    A. The wavelength gets longer as the frequency increases
    B. The wavelength gets shorter as the frequency increases
    C. There is no relationship between wavelength and frequency
    D. The wavelength depends on the bandwidth of the signal
The correct answer is B.

### Question 6
#### What is the formula for converting frequency to approximate wavelength in meters?

    A. Wavelength in meters equals frequency in hertz multiplied by 300
    B. Wavelength in meters equals frequency in hertz divided by 300
    C. Wavelength in meters equals frequency in megahertz divided by 300
    D. Wavelength in meters equals 300 divided by frequency in megahertz
The correct answer is D.

### Question 7
#### What property of radio waves is often used to identify the different frequency bands?

    A. The approximate wavelength
    B. The magnetic intensity of waves
    C. The time it takes for waves to travel one mile
    D. The voltage standing wave ratio of waves
The correct answer is A.

### Question 8
#### What are the frequency limits of the VHF spectrum?

    A. 30 to 300 kHz
    B. 30 to 300 MHz
    C. 300 to 3000 kHz
    D. 300 to 3000 MHz
The correct answer is B.

### Question 9
#### What are the frequency limits of the UHF spectrum?

    A. 30 to 300 kHz
    B. 30 to 300 MHz
    C. 300 to 3000 kHz
    D. 300 to 3000 MHz
The correct answer is D.

### Question 10
#### What frequency range is referred to as HF?

    A. 300 to 3000 MHz
    B. 30 to 300 MHz
    C. 3 to 30 MHz
    D. 300 to 3000 kHz
The correct answer is C.

### Question 11
#### What is the approximate velocity of a radio wave as it travels through free space?

    A. 3000 kilometers per second
    B. 300,000,000 meters per second
    C. 300,000 miles per hour
    D. 186,000 miles per hour
The correct answer is B.
# Field Remedies/Preparation

Preparation.
* Infusion
* Crushing
* Straining
# Field Remedies/Preparation/Infusion

One can prepare most herbal remedies by infusion. The infusion method involves preparing herbs by placing 1 to 2 teaspoons of dried herb or 2 to 4 fresh herbs in oil or water for approximately ten minutes, then straining. Waiting too long before straining results in bitter tasting herbs. People typically prepare teas and herbal teas by infusion.
Long term infusions involve leaving the herbs in the solute for at least one year. Long term infusions result in highly concentrated solutions similar to essential oils. Because of their concentration, users of long-term infusions must take greater care with overdose concerns; long term infusions do not function as teas.
# Field Repairs of Tractors and Trailers for the Driver/Printable version

The current, editable version of this book is available in Wikibooks, the open-content textbooks collection, at
https://en.wikibooks.org/wiki/Field_Repairs_of_Tractors_and_Trailers_for_the_Driver

# Tools & Other Items to Keep On Board
## Tools
### Basic Tools

* Vise grips: use for problem sliders
* Bungee cords
* Crowbar
* Torx drive set
* Large channel lock pliers
* Framing hammer
* 2-Adj. Wrenches (10")
* Mechanic's wire
* Test light
* Electrical pliers
* Magnetic Multi-screw/nut driver kit.
* Utility knife
* Needle nose pliers

### More Tools

* Soldering iron, portable.
* Flash light, artificial light sources needed when your power is out or it is dark.
* MultiTool, I like the Gerber tools that flick out with one hand and deploy a plier. This allows deployment when holding work or hanging on someplace. The better choices have scissors and wire crimpers.

## Supplies
### Basic Supplies

* Duct tape: so many repair uses.
* Electrical tape: cover up wire splices.
* Spare glad hand rubbers.
* Plumbers epoxy
* Electrical connectors
* Zip ties
* Gallon of coolant/oil
* WD-40 oil
* 4-Adj hose clamps(2-sm/2-lg)
* Tube of silicone
* Anti-gel fuel additive
* Spare Primary and Secondary fuel filters

### More Supplies

* Spare lights.
* Spare fuses of each type used in vehicle (required by law in some countries).
* Electrical connectors:
** Butt connectors.
** Three-way splice connectors.
** Male and female disconnect connectors: to make it possible to easily add and remove items like a CB radio.

# Vocabulary

Words italicized in the text can be found defined here in the vocabulary.

## Bitter end

    The loose end of a rope, line or similar item that can be manipulated

## Standing end

    The end that is attached of a rope, line or similar item
# Sliding Axles & Slider Repair

First presented are techniques for sliding trailer tandem axles under normal circumstances, second are techniques when normal techniques don't work, third are field repairs that can be made.
Calculating weight redistribution, legal weight limits are not discussed in this chapter.
The reasons one might want to slide the trailer axles are:
* to balance the weight of the rig for operational or legal requirements. Operationally it is best to have nearly equal weight on the drive axles and the trailer axles. This makes braking and control easier. If too much of the weight is carried by the trailer, the drive axles will not adhere to the road properly. This can result in the drives being lifted off the road surface and loss of control.
* to meet king pin to axle requirements
* to aid maneuvering (typically all the way back for docking in a tight space or all the way forward for making tight road turns)
* as a safety precaution for unloading (this is to prevent forklifts from causing the tail to drop, which is especially important if the tractor is not present to act as a counter weight)

## Standard Techniques for sliding trailer tandem axles

The optimal way to slide trailer axles depends on the equipment available and if a helper is available. The following will be described:
* without help
** trailer brake available
** trailer brake not available
* with help
** trailer brake available
** trailer brake not available

### Without help and trailer brake available

Some tractors have the ability to apply the service brakes on the trailer separately from the tractor brakes. The trailer service brake is always preferred as it applies more brake power than the spring brakes that are activated by the trailer brake button found on all tractors.
* stop the rig
* set only the tractor parking brake (you may need to hold the trailer button in while pulling the tractor button)
* make sure the transmission is in neutral
* alight from the tractor
* disengage the slider pins (the techniques for doing this on the various types of mechanisms is treated bellow)
# Trailer Air Lines
## Problem 1: Air Lines Hang Too Low

Trailer air lines must be 18 inches above the ground. A common problem on 53 foot trailers is that the sliding process damages the hanger springs causing the air lines to hang too low or actually touch the ground. This is a significant problem since the air lines can develop holes causing the spring brakes to come on and stopping the vehicle. When going through Weigh Stations, Weigh masters can easily see air lines that are hanging too low and are likely to stop the rig.

### Solution 1A

Use nylon string to attach at the spring attachment points both on the air line and on the underside of the trailer. A slip knot should be used on one end so that the string can be easily detached when sliding the axles. Be sure that no string or spring is hanging low.

### Solution 1B

Sometimes a stretched out spring is the problem. High quality side cutters can be used to trim the spring and a plier used to bend the end through the attachment point and then wrap bitter end around the standing end of the spring.
# Vocabulary

Words italicized in the text can be found defined here in the vocabulary.

## Bitter end

    The loose end of a rope, line or similar item that can be manipulated

## Standing end

    The end that is attached of a rope, line or similar item
# Field Remedies/Preparation/Crush

When distilling herbs into teas, you will likely want to crush them for maximum effect. This can be done in a number of ways.

## Mortar and pestle

A mortar and pestle is useful for any kind of leafy, grassy, woody, or tuberous herb. This consists of a mortar, a small stone bowl; and a pestle, a stone stick. The pestel can be used to grind anything against the rough surface of the mortar.
A mortar and pestel can be used to crush herbs up very well, releasing as much juice or oil as possible. The mortar and pestel can easily be flushed into whatever preparation vessel is being used in recipes involving water; this prevents mechanical loss. Simply pour some of the water over the pestel and into the mortar, then pour out into the preparation vessel.

## Garlic press

A w:Garlic press is a quick and dirty way to crush tuberous or bulbous herbs. It consists of a metal screen and a press, and works by forcing the stiff root through the metal screen.
Garlic presses are also relatively easy to flush, and quick to use; however, they do not crush the herb up as well as a mortar and pestel.

## Shredder

A shredder or grater can be used as a fast and easy method of grinding up most leafy, grassy, or tuberous herbs. Many graters have a rough side filled with small holes lined with jagged edges, useful for shredding plants into a pulpy form.
Shredders are fast and easy to use, but difficult to prevent mechanical loss in. The pulpy result sticks to the grater, and flushing a large one can be difficult.
# Field Repairs of Tractors and Trailers for the Driver

This book is intended as a compendium of techniques for making field repairs primarily to tractor trailers and similar vehicles. Also included are recommended tools and useful operational techniques.
Words italicized in the text can be found defined in the Vocabulary.

## Table of Contents

* Tools & Other Items to Keep On Board
* Electrical System
* Air System
* Brake System
* Suspension System
* Tires
* Safety Equipment
* Body & Chassis
* Misl. Systems
* Engine Cooling System
* Fuel System
* Engine Power
* Fluid Leaks

### Appendices

* Vocabulary

## Note to editors

Please look at the talk page before editing this book. The editors of this book have come up with guidelines to follow when editing this book, and a list of things that have to get done.

## Contributors

Chief Editor: Saltysailor (note, inactive here since June 2008, so may not respond to any questions / comments)
# Field Repairs of Tractors and Trailers for the Driver/Tools & Other Items to Keep On Board
## Tools
### Basic Tools

* Vise grips: use for problem sliders
* Bungee cords
* Crowbar
* Torx drive set
* Large channel lock pliers
* Framing hammer
* 2-Adj. Wrenches (10")
* Mechanic's wire
* Test light
* Electrical pliers
* Magnetic Multi-screw/nut driver kit.
* Utility knife
* Needle nose pliers

### More Tools

* Soldering iron, portable.
* Flash light, artificial light sources needed when your power is out or it is dark.
* MultiTool, I like the Gerber tools that flick out with one hand and deploy a plier. This allows deployment when holding work or hanging on someplace. The better choices have scissors and wire crimpers.

## Supplies
### Basic Supplies

* Duct tape: so many repair uses.
* Electrical tape: cover up wire splices.
* Spare glad hand rubbers.
* Plumbers epoxy
* Electrical connectors
* Zip ties
* Gallon of coolant/oil
* WD-40 oil
* 4-Adj hose clamps(2-sm/2-lg)
* Tube of silicone
* Anti-gel fuel additive
* Spare Primary and Secondary fuel filters

### More Supplies

* Spare lights.
* Spare fuses of each type used in vehicle (required by law in some countries).
* Electrical connectors:
** Butt connectors.
** Three-way splice connectors.
** Male and female disconnect connectors: to make it possible to easily add and remove items like a CB radio.
# Chess Opening Theory/1. e4/1...e6/2. d4/2...d5/3. e5/3...c5/4. c3/4...Nc6/5. Nf3/5...Qb6/6. Bd3/6...cxd4/7. cxd4/7...Nxd4
## 7...Nxd4?

This seemingly obvious move is a mistake. Black just lost his knight to a discovered attack threat.

## Theory table

| 8 | 9 | |
| Nxd4 Qxd4 | Bb5+ | +- |
# Chess Opening Theory/1. e4/1...e6/2. d4/2...d5/3. e5/3...c5/4. c3/4...Nc6/5. Nf3/5...Qb6/6. Bd3/6...cxd4/7. cxd4/7...Nxd4/8. Nxd4
## 8.Nxd4

This move captures a free Knight. If he recaptures it, he meets with an even worse fate!

## Theory table

| 8 | 9 | |
| ... Qxd4?? | Bb5+ | +- |
| ... Bc5 | | +- |
# French Defence: Advance Variation

By playing 6.a3 White eliminates any possibility of a b4 intrusion. Also White is preparing to assert himself on the queenside via b2-b4.Furthermore, b2-b4 frees the c1 bishop from minding the b2 pawn.

## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3
| | 6 |
| 1 | c4 | = |
When contributing to this Wikibook, please follow the Conventions for organization.

## References

* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
# French Defence: Advance Variation

Black stops White from expanding on the queenside with b2-b4 because of an en passant capture on b3. Furthermore, Black restricts White's f1 bishop range of movement.

## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3 c4
| | 7 |
| 1 | 7. Nbd2 | = |
When contributing to this Wikibook, please follow the Conventions for organization.

## References

* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
# Exchange Variation

This is the Exchange Variation of the French Defence. Up until the mid-19th century this was regarded as the main line of the French Defence. The Exchange Variation is a dull, drawish, and static opening, prompting Wilhelm Steinitz to write, "I have never in my life played the French Defense, which is among the dullest of openings." It was only around the 1860s and 1870s that the variations arising after 3.Nc3, 3.Nd2, and 3.e5 became popular.
The Exchange Variation leads to a symmetrical pawn structure. Both sides often develop symmetrically, while giving no room for imbalance in the game, which is why the opening is so drawish. Players who want a draw only will often employ the Exchange Variation.

## Theory table

For explanation of theory tables, see theory table and for notation, see algebraic notation. .
| 1.e4 e6 2.d4 d5 3.exd5 |
| | 3 |
| 1 | ... exd5 | = |
When contributing to this Wikibook, please follow the Conventions for organization.

## References

* Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.