question: What Companion (in order from star) has a Semimajor axis (AU) of 0.1886 +0.083 −0.0104?
answer: SELECT companion__in_order_from_star_ FROM table_name_58 WHERE semimajor_axis___au__ = "0.1886 +0.083 −0.0104"
context: CREATE TABLE table_name_58 (companion__in_order_from_star_ VARCHAR, semimajor_axis___au__ VARCHAR)