Sentence:  Where there were disagreements between the Portuguese and <WSD>Congolese</WSD> authorities with regard to the trading in African slaves, these tended to be about numbers, rather than the trade in human beings itself. According to some sources, the <WSD>Congolese</WSD> monarch publicly expressed his concerns to the Portuguese representatives that some European traders were enslaving all African citizens, 
Meaning of the word marked with <WSD> tags:  Of, from, or pertaining to the Congo or any Congolese state.