Algorithm 1: Data Generation Algorithm.

Require: use cases U, schemas S, questions Q, labels L    Set the number of data points to be generated, n    Initialize a counter $i=0$    while $i<n$ do          Randomly select a use case $u\in U$          Select a schema $s\in S$ for use case u          for $j=1$ to the number of questions, q do              Randomly select an answer a for question $q_j$ based on the schema s for use case u          end for          Add the labels $l_u$ for use case u          Increment the counter: $i=i+1$    end while    return Generated data