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...detached a long black right arm from hugging position.....

He's a young pygmy chimp

.....with the delicate fingers of a dark-brown hand.....

A young man.....

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mosja

...detached a long black right arm from hugging position.....

He's a young pygmy chimp

.....with the delicate fingers of a dark-brown hand.....

A young man.....

CJ

Comments  

With no other context these would typically be stressed as follows:


1. The word "long" is such a strong word that it almost always has to be the one given the emphasis in a sentence containing it. Stress "long."

2. "Pygmy" would be stressed. A pygmy chimp is a rare animal.

3. "Delicate" would almost always be the word that is stressed in a sentence containing it. Stress "delicate."

4. In the combination "young man," "young" would be stressed.

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anonymousA pygmy chimp is a rare animal.

It's another name for bonobos https://en.wikipedia.org/wiki/Bonobo

 CalifJim's reply was promoted to an answer.