diff --git a/data/INFO.json b/data/INFO.json
index 09ce1e8..1a4b5c5 100644
--- a/data/INFO.json
+++ b/data/INFO.json
@@ -1,9 +1,12 @@
-{
+[{
   "Name": "Name of the material",
   "Formula": "Formula of the material",
   "CAS Reg No.": "Chemical Abstracts Service Registry Number",
   "Mol. weight": "Molecular weight (relative molar mass)",
-  "Physical Form": "Physical form of material",
+  "Physical Form": {
+    "color": "color of the material",
+    "crystal": "crystal type of the material, e. g. cubic"
+  },
   "Equilibrium": {
     "p": "pressure",
     "rho": "Density at pressure p and temperature T",
@@ -11,34 +14,67 @@
     "Tm": "Normal melting point at pressure p",
     "Tb": "Normal boiling point at vapor pressure p",
   },
-  "rho(T)": "Estimated density at higher temperatures (up to Tmax or about 20°C): \\[\rho(T)=\rho\ti{m}-k(T-T_m)\]",
+  "rho(T)": {
+    "rho_m": "Estimated density at higher temperatures (up to Tmax or about 20°C): \\[\rho(T)=\rho\ti{m}-k(T-T_m)\]",
+    "k": "",
+    "Tmax": "The maximum temperature for the estimated desity"
+  },
   "p_b(T)": "Vapor pressure \(p\) in pascals: \[\log(p/Pa) = 5.006 + A + BT^{-1} + C\log{T} + DT^3\] where temperature T in K; p. 6-72",
   "Electromagnetic Data": {
-    "chi_m": "p. 4-142. Magnetic susceptibility; Molar susceptibility \[\chi\ti{m} = \kappa V\ti{m} = \kappa M / \rho \] where \(\kappa\) is the volume susceptibility, \(V\ti{m}\) is the molar volume of the substance, \(M\) the molar mass, and \(\rho\) the mass density. \(\kappa = \bold{M}/\bold{H}\) where \(\bold{H}\) is the magnetic filed and \(\bold{M}\) is magnetic moment per unit volume.",
+    "chi_m": "Magnetic susceptibility; Molar susceptibility \[\chi\ti{m} = \kappa V\ti{m} = \kappa M / \rho \] where \(\kappa\) is the volume susceptibility, \(V\ti{m}\) is the molar volume of the substance, \(M\) the molar mass, and \(\rho\) the mass density. \(\kappa = \bold{M}/\bold{H}\) where \(\bold{H}\) is the magnetic filed and \(\bold{M}\) is magnetic moment per unit volume.",
   },
   "Thermodynamic Properties": {
-        "Delta_f H°": "Standard molar enthalpy (heat) of formation at 298.15 K in kj/mol. 0.0 indicates the reference state.",
-        "Delta_f G°": "Standard molar Gibbs energy of formation at 298.15 K in kJ/mol",
-        "S°": "Standard molar entropy at 298.15 K in J/mol K",
-        "cp": "Specific heat capacity",
-        "Cp": "Molar heat capacity at constant pressure at 298.15 K in J/mol K",
-        "Delta_vap H": "Molar enthalpy (heat) of vaporization. Values are given at a pressure of 101.325 kPa",
-        "Delta_fus H": "Molar enthalpy (heat) of fusion. Values are given at the normal melting point Tm"
+    "Crystal, Liquid, Gas": {
+      "Delta_f H°": "Standard molar enthalpy (heat) of formation at 298.15 K in kj/mol. 0.0 indicates the reference state.",
+      "Delta_f G°": "Standard molar Gibbs energy of formation at 298.15 K in kJ/mol",
+      "S°": "Standard molar entropy at 298.15 K in J/mol K",
+      "cp": "Specific heat capacity",
+      "Cp": "Molar heat capacity at constant pressure at 298.15 K in J/mol K",
+    },
+    "Delta_vap H": "Molar enthalpy (heat) of vaporization. Values are given at a pressure of 101.325 kPa",
+    "Delta_fus H": "Molar enthalpy (heat) of fusion. Values are given at the normal melting point Tm"
   },
-    "Crystallographic Data": {
-        "Page": "4-156",
-        "Structure type": "Prototype for the structural arrangement of the crystallographic cell.",
-        "Z": "Number of formula units per the unit cell.",
-        "a, b, c": "Length of the cell edges in Å (1 Å = 10e-8 cm)",
-        "alpha, beta, gamma": "Angles between cell axes"
+  "Crystallographic Data": {
+    "Structure type": "Prototype for the structural arrangement of the crystallographic cell.",
+    "Z": "Number of formula units per the unit cell.",
+    "a, b, c": "Length of the cell edges in Å (1 Å = 10e-8 cm)",
+    "alpha, beta, gamma": "Angles between cell axes"
+  },
+  "Cubic Crystal": {
+    "rho": "Density",
+    "T": "Temperature",
+    "C11, C12, C44": ""
+  },
+  "Dynamik viscosity mu(T)": "List of temperature and viscosity values."
+  "Human": {
+    "Constituents of Human Blood": {
+      "Total volume of blood": "7.5 L for a male and 6.7 L for a female in 100 kg adult.",
+      "Total volume of plasma": "4.4 L for a male  and 4.3 L for a female in 100 kg adult."
     },
-    "Human": {
-        "Constituents of Human Blood": {
-            "Total volume of blood": "7.5 L for a male and 6.7 L for a female in 100 kg adult.",
-            "Total volume of plasma": "4.4 L for a male  and 4.3 L for a female in 100 kg adult."
-        },
-        "Composition of the Human Body": "Standard man = 70 kg"
-    },
-    "Borax Beads": "p. 8-13"
-}
-
+    "Composition of the Human Body": "Standard man = 70 kg"
+  },
+  "Borax Beads": {
+    "Oxidizing flame, Reducing flame": {
+      "colorless": "value or list of values of 'default', 'hot', 'cold', 'not saturated'"
+      "opaque": "value or list of values of 'supersaturated', 'saturated'"
+    }
+  },
+  "Source": "Sources"
+},
+{
+  "Physical Form": {
+    "color": "silvery-white metal",
+    "crystal": "cubic crystals"
+  },
+  "Source": [
+    {
+      "Type": "Book",
+      "Title": "Title of the book",
+      "Pages": [
+        ["4-152", "Electromagnetic Data"],
+        ["4-156", "Crystallographic Data"],
+        ["8-13", "Borax Beads"]
+      ]
+    }
+  ]
+}]