import re
<2次元リストは省略>
for color in colors:
dup_num = 0
color_hiragana = list()
for ele in color:
hiragana = re.findall('[ぁ-ゟ]+', ele)
if len(hiragana) == 2: # 要素内にひらがな単語が2つある場合は最初のを削除
del hiragana[0]
dup_num +=1
color_hiragana.append(hiragana)
# リストの平滑化
color_hiragana_flat = [e for l in color_hiragana for e in l]
print(dup_num)
print(len(color_hiragana_flat))
print(color_hiragana_flat)