Read the following passage and solve the questions based on it.
The National Museum Curator must group nine sculptures—Q, R, S, T, V, W, X, Y and Z in tables numbered consecutively from 1 - 12. The sculptures will be placed in three groups, each group representing a different period of the Indian civilization. The groups must be separated from each other by at least one unused table, but unused tables cannot occur within any group. Three of the sculptures are from the Indus Valley Civilization period (3000 BC–1500 BC), two are from the Mauryan period (322 BC–185 BC) and four are from the Gupta empire period (AD 320–AD 540).
The following table gives the period details of the different sculptures:
(i) T, V, W are all sculptures from the same period.
(ii) R and T are sculptures from different periods.
(iii) Q and X are the Indus Valley Civilization period sculptures.
(iv) Y is the Mauryan period Sculpture.
(v) Table 5 is always empty.
If the first five sculptures, in the numerical order of their tables are Q, Z, X, Y and R, which of the following must be true?