what kinds of bipropellant rocket engines have fewer than 2 chambers?
Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity Entity
m.03hd3kq m.032blg m.034_44 m.02xlt61 m.02xlvp4 m.02xlvqg m.0czj6d m.03hd5ln m.0b19_q m.03g0sk m.07tczt m.0351y6 m.02xlwlp m.026xrt0 m.02xlwgn m.02xlwhf m.02xlwj8 m.02xlwk0 m.02xlwmh m.03hdfmx m.02xhkbz m.02xlvwq m.02xlw9x m.02xlwbn m.03k0df1 m.03k0h94 m.03k0hk4 m.043jfp m.02xlvr3 m.02xlvy6 m.02xlws_ m.02xlwtv m.02xlwvp m.02xlwwh m.02xlwxb m.03jz69l m.034_q7 m.03nqqz
S5.19 Space Shuttle main engine Rocketdyne F-1 RD-550 RD-2 RD-1 M-1 KTDU-425 NK-33 Kestrel RS-27A RL10 RD-110 HM7B RD-115 RD-114 RD-113 RD-112 RD-109 S5.92 RD-0120 RD-161 RD-120K RD-120 RD-169 RD-182 RD-185 RS-68 RD-191 RD-146 RD-106 RD-105 RD-103M RD-103 RD-101 RD-100 Rocketdyne J-2 Reaction Motors XLR99
class literal
spaceflight.bipropellant_rocket_engine 2^^http://www.w3.org/2001/XMLSchema#integer
spaceflight.bipropellant_rocket_engine type.int
Bipropellant rocket engine 2
none <
spaceflight.bipropellant_rocket_engine.number_of_chambers
Number of chambers
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX : <http://rdf.freebase.com/ns/> 
SELECT (?x0 AS ?value) WHERE {
SELECT DISTINCT ?x0  WHERE { 
?x0 :type.object.type :spaceflight.bipropellant_rocket_engine . 
FILTER (?x1 < "2"^^<http://www.w3.org/2001/XMLSchema#integer>)
?x0 :spaceflight.bipropellant_rocket_engine.number_of_chambers ?x1 . 
FILTER ( ?x0 != ?x1  )
}
}
(AND spaceflight.bipropellant_rocket_engine (lt spaceflight.bipropellant_rocket_engine.number_of_chambers 2^^http://www.w3.org/2001/XMLSchema#integer))