Vocabulary consisting only from characters you are able to read
上手く
umaku
(1)skilfully, skillfully, well, aptly, cleverly, (2)successfully, smoothly, (3)deliciously mix
利く
kiku
(1)to be effective, to show effect, (2)to do its work, to carry out its function well, (3)to be possible to use godan, verb, vintrans
分割
bunkacu
partition, division, separation, segmenting, splittingsuru
土木
doboku
public worksmix
やり取り
jaritori
giving and taking/exchange (of letters)/arguing back and forth/(conversational) exchange/(P)jlpt3, suru