##Instruction:
Database: toxicology
Total Tables: 4
Total Columns: 11

Table Schemas:

Database: toxicology
Total Tables: 4
Total Columns: 11

Table Schemas:

Table: atom (3 columns)
-----------------------
• atom_id (text): the unique id of atoms
• molecule_id (text): identifying the molecule to which the atom belongs
  Values: commonsense evidence:
TRXXX_i represents ith atom of molecule TRXXX
• element (text): the element of the toxicology
  Values:  cl: chlorine
 c: carbon
 h: hydrogen
 o: oxygen
 s: sulfur
 n: nitrogen
 p: phosphorus
 na:...

Table: bond (3 columns)
-----------------------
• bond_id (text): unique id representing bonds
  Values: TRxxx_A1_A2:
TRXXX refers to which molecule
A1 and A2 refers to which atom
• molecule_id (text): identifying the molecule in which the bond appears
• bond_type (text): type of the bond
  Values: commonsense evidence:
-: single bond
'=': double bond
'#': triple bond

Table: connected (3 columns)
----------------------------
• atom_id (text): id of the first atom
• atom_id2 (text): id of the second atom
• bond_id (text): bond id representing bond between two atoms

Table: molecule (2 columns)
---------------------------
• molecule_id (text): unique id of molecule
  Values: "+" --> this molecule / compound is carcinogenic
'-' this molecule is not / compound carcinogenic
• label (text): whether this molecule is carcinogenic or not

##Evidence:
first 100 molecules refers to molecule_id between 'TR000' and 'TR099'; carcinogenic molecules refers to label = '+'; only molecules containing carbon or hydrogen are considered

##Role Access Policy (Column-Level):
Role: MolecularDataEntry
Accessible Columns: molecule: molecule_id, label; atom: atom_id, molecule_id, element; bond: bond_id, molecule_id, bond_type

Based on the above schema and your role's column-level access policy, generate a SQL query to answer the question. If your role does not have access to the required columns, respond with: "Sorry, I cannot answer."


Question: What are the average structural characteristics of carcinogenic molecules among the first 100 molecules, including the number of atoms, carbon atoms, bonds, double bonds, connected atoms, and the ratio of carbon-to-carbon connections?
Evidence: first 100 molecules refers to molecule_id between 'TR000' and 'TR099'; carcinogenic molecules refers to label = '+'; only molecules containing carbon or hydrogen are considered
Answer: Sorry, I cannot answer.
Permission: denied (Missing column permissions: connected: atom_id, atom_id2)
Gold SQL: WITH MoleculeInfo AS (
    SELECT 
        m.molecule_id,
        m.label,
        COUNT(DISTINCT a.atom_id) AS atom_count,
        COUNT(DISTINCT b.bond_id) AS bond_count,
        SUM(CASE WHEN a.element = 'c' THEN 1 ELSE 0 END) AS carbon_count,
        SUM(CASE WHEN a.element = 'h' THEN 1 ELSE 0 END) AS hydrogen_count,
        SUM(CASE WHEN a.element = 'o' THEN 1 ELSE 0 END) AS oxygen_count,
        SUM(CASE WHEN a.element = 'n' THEN 1 ELSE 0 END) AS nitrogen_count,
        SUM(CASE WHEN a.element NOT IN ('c', 'h', 'o', 'n') THEN 1 ELSE 0 END) AS other_element_count,
        SUM(CASE WHEN b.bond_type = '=' THEN 1 ELSE 0 END) AS double_bond_count,
        ROW_NUMBER() OVER (ORDER BY m.molecule_id) AS molecule_rank
    FROM 
        molecule m
    LEFT JOIN 
        atom a ON m.molecule_id = a.molecule_id
    LEFT JOIN 
        bond b ON m.molecule_id = b.molecule_id
    WHERE 
        m.molecule_id BETWEEN 'TR000' AND 'TR099'
    GROUP BY 
        m.molecule_id, m.label
),
ConnectionStats AS (
    SELECT 
        m.molecule_id,
        COUNT(DISTINCT c.atom_id) AS connected_atoms,
        AVG(CASE WHEN a.element = 'c' AND a2.element = 'c' THEN 1 ELSE 0 END) AS carbon_carbon_ratio
    FROM 
        molecule m
    JOIN 
        atom a ON m.molecule_id = a.molecule_id
    JOIN 
        connected c ON a.atom_id = c.atom_id
    JOIN 
        atom a2 ON c.atom_id2 = a2.atom_id
    WHERE 
        m.molecule_id BETWEEN 'TR000' AND 'TR099'
    GROUP BY 
        m.molecule_id
)
SELECT 
    COUNT(mi.molecule_id) AS carcinogenic_count,
    AVG(mi.atom_count) AS avg_atoms_in_carcinogenic,
    AVG(mi.carbon_count) AS avg_carbon_in_carcinogenic,
    AVG(mi.bond_count) AS avg_bonds_in_carcinogenic,
    AVG(mi.double_bond_count) AS avg_double_bonds_in_carcinogenic,
    AVG(cs.connected_atoms) AS avg_connected_atoms,
    AVG(cs.carbon_carbon_ratio) AS avg_carbon_carbon_ratio
FROM 
    MoleculeInfo mi
LEFT JOIN 
    ConnectionStats cs ON mi.molecule_id = cs.molecule_id
WHERE 
    mi.label = '+' 
    AND mi.molecule_rank <= 100
    AND (mi.carbon_count > 0 OR mi.hydrogen_count > 0)