Vocabulary consisting only from characters you are able to read
二人
futari
two persons, two people, pair, couplejlpt5
分の
bunno
denominator bun no numerator (in writing common fractions), X Yth's (Y bun no X)jlpt3, math
五分五分
gobugobu
as likely as not, 50-50, even match, tiemix
水力
suirjoku
hydraulic power, water powermix