READQ1 = t
  READQ1_BEGIN
  single_pil_variable value ! e.g. lsweep 10
  arrayed_pil_variable phi_index value ! e.g. dtfals 14 1.e-3
  common_block_name location value ! e.g. ldat 82 T
  READQ1_END 
  
  Encyclopaedia hyperlink is
  /phoenics/d_polis/d_enc/read.htm#readQ1
