String: "We're no strangers to love"
Jelly:  “©œ1Ṿ⁽TtṁO4ƬṅSḳXÄ» (18 bytes)
Vyxal: "'V«ᵡỌ}ṗ→\ᵜ;gṆᵘ” (16 bytes)

short length:19000
long length:646609

import json

with open(
    r"file.txt", "r", encoding="utf-8"
) as f:
    lines = f.readlines()
    lines = map(lambda x: x.split(), lines)
    lines = list(filter(lambda x: int(x[1]) > 30, lines))
    short = list(map(lambda x: x[0], lines))[:19000]
    long = list(map(lambda x: x[0], lines))[19000:]
    print("short length:" + str(len(short)))
    print("long length:" + str(len(long)))

# import dictionary

with open("ShortDictionary.txt", "w", encoding="utf-8") as out:
    out.write("\n".join(short))