Relative Pronoun Who
日本語は大まかな状況を説明しているだけで詳細な訳ではありません 。
関係代名詞whoは先行詞が人で主格を表す場合に使われます。先行詞が人以外の場合は which か that が使われます。
1. Restrictive examples: Relative pronoun combines two clauses and clearly identifies the noun/pronoun/noun phrase preceding the dependent clause. The dependent clause is needed to complete the meaning of the sentence.
制限用法：関係代名詞が2つの節をつなぎ従属節が先行詞をはっきりと限定する例。従属節は文の意味を完結させるのに必要である。
I have an uncle.
He speaks English very well.
I have an uncle who speaks English very well.
私は英語が上手に話せる叔父がいます。
I know the man.
He is sitting under the tree on the bench.
I know the man who is sitting under the tree on the bench.
私は木の下に座っている男を知っている。
The man is my brother.
He spoke to you at the party last night.
The man who spoke to you at the party last night is my brother.
昨夜のパーティーで貴方に話かけた男性は私の兄/弟です。
The candidates had high qualifications.
They were offered the job.
The candidates who were offered the job had high qualifications.
仕事をオーファーされた候補者たちは皆資格の良い人たちでした。
The police have been looking for the three men.
The men are accused of committing a bank robbery.
The police have been looking for the three men who are accused of committing a bank robbery.
警察は3人の銀行強盗容疑者たちを探している。
Students are having a barbecue party at the beach.
They just finished the final exam.
Students who just finished the final exam are having a barbecue party at the beach.
期末テストを終えたばかりの学生たちがビーチでバーベキューパーティーしてます。
2. Non-restrictive examples: Relative clause is set off by commas and supplies extra information. The who clause can be taken out without altering the meaning of the sentence.
非制限用法：関係節がコンマで区切られ情報が継ぎ足される例。Whoで導かれる関係節が無くても文の本来の意味は変わらない。
Your mother, who called me yesterday, called again this afternoon.
貴方の母が今日の昼又電話していた（昨日も電話してきた）。
Mr. Kinjo, who lives next door, is a high school teacher.
金城さんは高校の先生です（私の隣人でもある）。
The Naha high school baseball players, who are invited to the welcome dinner party tonight, arrived here by bus yesterday.
那覇高校のバスケットボール選手たちが昨日バスでここに到着しました（彼らは今夜歓迎ディナーパーティーに招待されてます）。
When she witnessed the shoplifting she spoke to the manager, who is married with three children.
万引きを目撃した時彼女はマネージャーに話した（マネージャーは結婚していて子供が3名います）
The soccer team arrived at the airport and were greeted by the mayor, who is a good friend of mine.
サッカーチームは空港に到着し市長の歓迎を受けた（市長は私の良き友です）。
The president of the farmer’s union delivered a speech to the audience, who are avid fishermen.
農業者協同組合の会長が聴衆にスピーチした（聴衆は釣り愛好会でもある）。