input: [1] char [2] +/- to denote strand or orientation (whenever applicable). Use ‘.’ if no orientation is assigned. [0] 
output: strand
options: f i e l d
options: c h r o m
options: c h r o m S t a r t
options: c h r o m E n d
options: n a m e
options: s c o r e
options: s t r a n d