source: [word=am] [lemma=still] □ □
destination: [word=am] [lemma=still] □ □ □
spec: I am keenly interested in applications , and find these are essential to provide the focus and motivation for tackling the mathematics . A retrograde pyelogram may be performed on patients with contrast allergy to opacify the entire upper collecting system ; however , risks associated with anesthesia and the risk of infection are present . I had been wondering if I should tell the fruit seller and greengrocer that I was leaving - to bid them an official goodbye , but I hesitated because I 'm still not sure if I am considered a valued customer and I 'm never sure if I 'm being overcharged any time I go . I 'm still not sure if my argument has been grasped but I assume rescinding a governorship will get my point across .