emoji sentiment grouping ?

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Top 4 similar emoji with 😭 by using pre-trained emoji2vec.txt:

😿 0.836434900761 😢 0.689464867115 😹 0.677145779133 😂 0.671003580093

I get it, that crying face emoji is kind of more similar with above 4 emojis, but 😿😢 and 😹😂 represent totally two different part of word sentiment. Positive and Negative! How can I group emojis based by sentiment polarity ?

morn    😭
hurt    😭
crying  😭
tears   😭
loudly crying face  😭
sob 😭
sobbing 😭
sad tears   😭
bawling 😭
sad 😭
melancholy  😭
cry 😭
somber  😭

laughing    😂
lol 😂
laughing crying 😂
tears   😂
joy 😂
happy   😂
laughing tears  😂
cry 😂
face with tears of joy  😂