Natural Language Query (Chinese):
看看抖音集团这块，关于氢能、最近18个月许可生效日、欧盟、IPCH04W的专利有哪些？

SQL-like Query (Chinese):
patent|org_name:抖音集团 AND key_words:氢能 AND license_effective_date:[20230228 TO 20240831] AND country_name:欧盟 AND ipc_cpc:H04W

Natural Language Query (English):
Looking at Douyin Group, what patents does it have related to hydrogen energy, the effective date of licenses in the last 18 months, the European Union, and IPCH04W?

SQL-like Query (English):
patent|org_name:Douyin Group AND key_words:hydrogen energy AND license_effective_date:[202300228 TO 20240831] AND country_name:European Union AND ipc_cpc:H04W