Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:

Convert text to sql: What is the id and name of the enzyme that can interact with the most medicines as an activator? | medicine : id , name , trade_name , fda_approved | enzyme : id , name , location , product , chromosome , omim , porphyria | medicine_enzyme_interaction : enzyme_id , medicine_id , interaction_type | medicine_enzyme_interaction.medicine_id = medicine.id | medicine_enzyme_interaction.enzyme_id = enzyme.id | 

### Response:

select _ from _ where _ group by _ order by count ( _ ) desc limit _ | select enzyme.id , enzyme.name from enzyme join medicine_enzyme_interaction on enzyme.id = medicine_enzyme_interaction.enzyme_id where medicine_enzyme_interaction.interaction_type = 'activitor' group by enzyme.id order by count ( * ) desc limit 1