YOU SAID:
they said that they wanted one coffee please
INTO JAPANESE
彼らはコーヒーを一杯欲しいと言った
BACK INTO ENGLISH
They said they wanted a cup of coffee
INTO JAPANESE
彼らは一杯のコーヒーが欲しいと言った
BACK INTO ENGLISH
They said they wanted a cup of coffee
That's deep, man.