tukue no sita no konsento ha tooi node, entyoukoodo wo kaou to omotte imasu.

Because の is linking nouns/phrases together in layers.

• 机の下 = under the desk
• 机の下のコンセント = the outlet under the desk

So the first の connects desk and under, and the second の connects under the desk and outlet.

You can think of it as:

[desk] + [under] + [outlet]
→ the outlet that is under the desk

This kind of stacked の is very common in Japanese.

は marks the topic: the thing the sentence is talking about.

Here, 机の下のコンセントは means something like:

• As for the outlet under the desk...
• The outlet under the desk...

Then the sentence comments on it: 遠いので.

If you used が, it would sound more like you are identifying or newly presenting the outlet as the subject. With は, it feels more like a known item in the situation, and the speaker is explaining what they plan to do about it.

Yes. In Japanese, 遠い can be used for something that is physically far from the speaker or from where it needs to be used.

So コンセントは遠い means the outlet is too far away for the current purpose. The idea is probably:

• the outlet is not close enough to reach conveniently
• the cord from the device will not reach it easily

In natural English, you might say the outlet is too far away or the outlet is not close enough.

Because in Japanese, clauses before connectors like ので often use the plain form, even in a polite sentence.

So this is normal:

• 遠いので、延長コードを買おうと思っています。

The sentence still ends politely because of 思っています.

You could hear 遠いですので in very formal speech, but it is less common in everyday conversation. In ordinary polite Japanese, plain form + ので is very natural.

Both can mean because, but the nuance is a little different.

• ので sounds a bit softer, more explanatory, and more objective
• から can sound more direct or more like the speaker’s own reasoning

So:

• 遠いので、延長コードを買おうと思っています。 = Because it’s far away, I’m thinking of buying an extension cord.

This sounds like a calm explanation.

If you said 遠いから, it would still be correct, but it may sound a little more straightforward or personal.

These express different ideas.

• 買いたいです = I want to buy it
• 買おうと思っています = I’m thinking of buying it / I intend to buy it / I’m planning to buy it

So 買いたい focuses on desire.
買おうと思っています focuses more on intention or a developing plan.

In this sentence, the speaker is not just saying they want an extension cord; they are saying they are considering or planning to buy one.

The と marks the content of the thought.

Japanese uses X と 思う for think X.

So here:

• 買おう = let’s buy / I’ll buy (volitional form)
• 買おうと思っています = I am thinking, “I’ll buy it”
  → more naturally, I’m thinking of buying it

So the と is not random; it is the particle that links the thought to 思っています.

買おう is the volitional form of 買う.

• 買う = to buy
• 買おう = let’s buy / I’ll buy

When the volitional form is followed by と思う or と思っている, it often expresses intention:

• 買おうと思う = I think I’ll buy it
• 買おうと思っている = I’m thinking of buying it / I intend to buy it

So this is a very common pattern for talking about plans.

The difference is subtle but important.

• 買おうと思います can sound like a thought or decision being made now
• 買おうと思っています suggests an ongoing intention or plan already in the speaker’s mind

So in this sentence, 思っています makes it sound like:

• the speaker has been thinking about this
• it is not just a sudden decision at this exact moment

That is why 買おうと思っています often feels like I’m planning to buy one or I’ve been thinking of buying one.

Both are possible.

• 机の下のコンセント
• 机の下にあるコンセント

The second version is more explicit: the outlet that is under the desk.

The first version is shorter and very natural when the relationship is obvious. Japanese often prefers the more compact version when it is clear enough.

So:

• 机の下のコンセント = the outlet under the desk
• 机の下にあるコンセント = the outlet that is located under the desk

They mean nearly the same thing here.

Yes, 延長コード means extension cord.

It is marked with を because it is the direct object of 買おう:

• 延長コードを買おう = I’ll buy an extension cord = I’m thinking of buying an extension cord

So を shows what is being bought.

Also, notice there is no a/an in Japanese. A bare noun like 延長コード can mean an extension cord in context.