rtokens: Traders and analysts differed as to how firm the relative recovery on Friday was .
pos: PRP VBZ DT JJ NN WDT VBZ PRP$ NN , " VBD NNP NNP , NN NN IN NNP .
tokens: It 's a sudden plunge that takes its toll , " said Carlos Ponce , research director at Santander .
ltokens: " Falling share prices in New York do n't hurt Mexico as long as it happens gradually , as earlier this week .