My friend swan told me that she had a friend living in the cave.为什么live要用living_(_)_ wWWWw@@@@ (_)@(_) vVVVv _ @@@@ (___)@@()@@ wWWWw (_)\ (___) _(_)_ @@()@@ Y@@@@ (___) `|/ Y (_)@(_) @@@@ \|// Y \| \|/ /(_) \| |/\ | \ |/ | /\ | / \|/ |/ \|

My friend swan told me that she had a friend living in the cave.为什么live要用living_(_)_ wWWWw@@@@ (_)@(_) vVVVv _ @@@@ (___)@@()@@ wWWWw (_)\ (___) _(_)_ @@()@@ Y@@@@ (___) `|/ Y (_)@(_) @@@@ \|// Y \| \|/ /(_) \| |/\ | \ |/ | /\ | / \|/ |/ \|
My friend swan told me that she had a friend living in the cave.为什么live要用living
_(_)_ wWWWw
@@@@ (_)@(_) vVVVv _ @@@@ (___)
@@()@@ wWWWw (_)\ (___) _(_)_ @@()@@ Y
@@@@ (___) `|/ Y (_)@(_) @@@@ \|/
/ Y \| \|/ /(_) \| |/
\ | \ |/ | /\ | / \|/ |/ \|
|/// \\|/// \\\\|//\\|///\|/// \\\|// \\|//
^^^^^^ 百 ^^^^^^^^^^^^^ 花 ^^^^^^^^^^^^^^^ 园 ^^^^^
( ⊙o⊙ )千真万确 冏rz

My friend swan told me that she had a friend living in the cave.为什么live要用living_(_)_ wWWWw@@@@ (_)@(_) vVVVv _ @@@@ (___)@@()@@ wWWWw (_)\ (___) _(_)_ @@()@@ Y@@@@ (___) `|/ Y (_)@(_) @@@@ \|// Y \| \|/ /(_) \| |/\ | \ |/ | /\ | / \|/ |/ \|
现在分词做后置定语修饰friend

表示状态！

你这个句子等同于 。。。。she had a friend who is living in the cave .省略了 who is 明白吗？

中间省略了who is
整句为：
My friend Swan told me that she had a friend who is living in the cave.