Sentence:  The Istiqlal was still firmly united in 1957 , but the P.D.I. ( Parti Democratique de l'Independance ) , the most important minor party at the <WSD>time</WSD> , objected to the Istiqlal 's predominance in the civil service and influence in Radio Maroc . 
Meaning of the word marked with <WSD> tags:  an indefinite period (usually marked by specific attributes or activities)